{"id":3081,"date":"2025-03-17T05:00:00","date_gmt":"2025-03-17T05:00:00","guid":{"rendered":"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/?p=3081"},"modified":"2025-03-19T01:03:18","modified_gmt":"2025-03-19T01:03:18","slug":"seeds-start-march","status":"publish","type":"post","link":"https:\/\/www.botanicalinterests.com\/community\/blog\/seeds-start-march\/","title":{"rendered":"21 Seeds to Start Indoors in March"},"content":{"rendered":"<div class=\"table-of-contents\">\n    <div class=\"table-of-contents__top\">\n        <p class=\"table-of-contents__title\">\n            Contents        <\/p>\n        <button class=\"btn--small table-of-contents__action\" aria-label=\"Toggle table of contents\"><\/button>\n    <\/div>\n\n    <div class=\"table-of-contents__list\" style=\"display: none;\"><\/div>\n<\/div>\n\n\n\n\n<p>For many gardeners, the end of winter is finally on the horizon. We can see the light at the end of the gloomy winter tunnel. Unfortunately, that&#8217;s not the case for all gardeners. This month, for those in<strong> zones lower than zone six and below,<\/strong> it probably feels like winter is never-ending.<\/p>\n\n\n\n<p>No matter which group you fall into, there are plenty seeds to start this March if you&#8217;re sowing indoors.<\/p>\n\n\n\n<p>Sowing seeds indoors (or in a protected area like a greenhouse) gives you much greater control over growing conditions. With a few tools like <a href=\"https:\/\/www.botanicalinterests.com\/products\/seed-starting-heat-mat\">heat mats<\/a> and <a href=\"https:\/\/www.botanicalinterests.com\/products\/epic-seed-starting-grow-light\">grow lights<\/a>, you can improve germination rates and give your seedlings <strong>the strongest possible start.<\/strong> Indoor sowing also means easier access to your trays, so you won&#8217;t forget to water or keep an eye on them while they&#8217;re germinating.<\/p>\n\n\n\n<p>If you haven&#8217;t started indoor <a href=\"https:\/\/www.botanicalinterests.com\/community\/blog\/seeds-plant-february\/\">sowing in February<\/a>, March is a great time to sow a wide range of vegetable, herb, and flower seeds, depending on your spring gardening goals.<\/p>\n\n\n    <div class=\"block-grid\">\n                    <div class=\"block-grid__item\">\n                    <div class=\"product-card \">\n                    <p class='block-title'>Alaska Shasta Daisy <br><br><\/p>        \n                    <figure class=\"product-card__media\">\n                <img loading=\"lazy\" src='https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Shasta-Daisy-seeds-436x436.jpg' alt=\"Shasta Daisy\" width='436' height='436'>            <\/figure>\n        \n                    <div class=\"product-card__rating\">\n                <div class=\"rating\">\n                    <p class=\"rating__text\">\n                        Our Rating                    <\/p>\n                    <ul class=\"stars\"><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><\/ul>                <\/div>\n            <\/div>\n        \n        <div class=\"product-card__content\">\n                            <p class=\"product-card__title\">\n                    Alaska Shasta Daisy Seeds                <\/p>\n            \n                            <div class=\"product-card__action\">\n                    <a class='btn' href='https:\/\/www.botanicalinterests.com\/products\/alaska-shasta-daisy-seeds' target='_blank' rel='nofollow sponsored'><span>View On Botanical Interests<\/span><\/a>                <\/div>\n                    <\/div>\n\n            <\/div>\n            <\/div>\n                    <div class=\"block-grid__item\">\n                    <div class=\"product-card \">\n                    <p class='block-title'>Romanesco Cauliflower<\/p>        \n                    <figure class=\"product-card__media\">\n                <img loading=\"lazy\" src='https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Romanesco-Cauliflower-436x436.jpg' alt=\"Romanesco Cauliflower\" width='436' height='436'>            <\/figure>\n        \n                    <div class=\"product-card__rating\">\n                <div class=\"rating\">\n                    <p class=\"rating__text\">\n                        Our Rating                    <\/p>\n                    <ul class=\"stars\"><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><\/ul>                <\/div>\n            <\/div>\n        \n        <div class=\"product-card__content\">\n                            <p class=\"product-card__title\">\n                    Cauliflower Seeds                <\/p>\n            \n                            <div class=\"product-card__action\">\n                    <a class='btn' href='https:\/\/www.botanicalinterests.com\/products\/romanesco-cauliflower-seeds' target='_blank' rel='nofollow sponsored'><span>View On Botanical Interests<\/span><\/a>                <\/div>\n                    <\/div>\n\n            <\/div>\n            <\/div>\n                    <div class=\"block-grid__item\">\n                    <div class=\"product-card \">\n                    <p class='block-title'>Lemon Basil<br><br><\/p>        \n                    <figure class=\"product-card__media\">\n                <img loading=\"lazy\" src='https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Lemon-Basil-Seeds.jpg' alt=\"Lemon Basil Seeds\" width='436' height='436'>            <\/figure>\n        \n                    <div class=\"product-card__rating\">\n                <div class=\"rating\">\n                    <p class=\"rating__text\">\n                        Our Rating                    <\/p>\n                    <ul class=\"stars\"><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><li class=\"stars__item\"><\/li><\/ul>                <\/div>\n            <\/div>\n        \n        <div class=\"product-card__content\">\n                            <p class=\"product-card__title\">\n                    Lemon Basil Seeds                <\/p>\n            \n                            <div class=\"product-card__action\">\n                    <a class='btn' href='https:\/\/www.botanicalinterests.com\/products\/lemon-basil-seeds-organic' target='_blank' rel='nofollow sponsored'><span>View On Botanical Interests<\/span><\/a>                <\/div>\n                    <\/div>\n\n            <\/div>\n            <\/div>\n            <\/div>\n\n\n\n<h2 id=\"Cabbage\" class=\"wp-block-heading\">Cabbage<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/08\/cabbage-sow-and-grow.jpg\" alt=\"A close-up view from above of a growing cabbage in a garden, showing its tightly wrapped green leaves and intricate layers.\" class=\"wp-image-1384\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/cabbage-sow-and-grow.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/cabbage-sow-and-grow-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/cabbage-sow-and-grow-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/cabbage-sow-and-grow-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/cabbage-sow-and-grow-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/cabbage-sow-and-grow-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/cabbage-sow-and-grow-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Cabbage is versatile and loves cooler temperatures.<\/figcaption><\/figure>\n\n\n\n<p>As a brassica, <a href=\"https:\/\/www.botanicalinterests.com\/products\/copenhagen-market-cabbage-seeds\">cabbage<\/a> <strong>loves cooler temperatures,<\/strong> making it perfect for seed starting in March. This crop is a staple in my vegetable garden due to its versatility. You get so much to work with in one harvest, and the leaves are useful in cooked dishes or eaten fresh. I like to use them as a nutrient-dense and crunchy replacement for lettuce in salads when my leafy greens run out.<\/p>\n\n\n\n<p>Indoor sowing is recommended for those in cooler climates around 6 to 8 weeks before your average last frost date. If you live in a warmer climate where frost has already passed (zones 8 or 9 and up), your cabbage will perform better if you wait until fall to sow for a cool-season harvest.<\/p>\n\n\n\n<h2 id=\"Broccoli\" class=\"wp-block-heading\">Broccoli<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2025\/01\/Broccoli.jpg\" alt=\"A close-up shot of a developing green crop showcasing its dark green florets in a well lit area\" class=\"wp-image-2611\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/01\/Broccoli.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/01\/Broccoli-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/01\/Broccoli-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/01\/Broccoli-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/01\/Broccoli-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/01\/Broccoli-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/01\/Broccoli-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Broccoli is a nutrient-dense, cool-loving crop with many varieties to choose from.<\/figcaption><\/figure>\n\n\n\n<p>Sticking with brassicas, broccoli is another excellent seed to start in March. Although broccoli gets a bad rap from kids in many families, this is one of the <strong>most nutrient-dense vegetables <\/strong>you can grow. Choosing your own varieties by growing from seed also gives you more control over flavor or even color (with options like <a href=\"https:\/\/www.botanicalinterests.com\/products\/burgundy-broccoli-seeds\">Burgundy<\/a>).<\/p>\n\n\n\n<p>Get your kids involved in the sowing process, and they&#8217;ll be much more likely to enjoy broccoli when it appears on their plate a few months later.<\/p>\n\n\n\n<p>Broccoli is best sown indoors <strong>4 to 6 weeks<\/strong> before the last frost, a little later than cabbage. Like cabbage, if you live in a warm climate, it&#8217;s best to wait until fall to avoid your broccoli maturing in hot weather.<\/p>\n\n\n\n<h2 id=\"Cauliflower\" class=\"wp-block-heading\">Cauliflower<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Cauliflower.jpg\" alt=\"An overhead shot of a developing Cauliflower crop showcasing its white center and outer leafy greens\" class=\"wp-image-3089\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Cauliflower.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Cauliflower-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Cauliflower-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Cauliflower-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Cauliflower-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Cauliflower-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Cauliflower-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Plant cauliflower seeds a quarter of an inch below the soil, 4 to 6 weeks before the last frost.<\/figcaption><\/figure>\n\n\n\n<p>Whether you&#8217;re turning the heads into cauliflower rice, cauliflower pizza bases, or one of the other trendy cauliflower dishes, I guarantee this vegetable is more versatile than you think. If you haven&#8217;t tried growing them before, March is a good time to start.<\/p>\n\n\n\n<p>You can follow the same planting instructions for <a href=\"https:\/\/www.botanicalinterests.com\/products\/snowball-y-cauliflower-seeds\">cauliflower<\/a> as for broccoli, sowing 4 to 6 weeks before your last frost date indoors. <strong>Don&#8217;t plant them too deeply<\/strong>\u2014a quarter of an inch below the soil is all they need for germination. The seedlings should emerge in 8 to 10 days.<\/p>\n\n\n\n<h2 id=\"Lettuce\" class=\"wp-block-heading\">Lettuce<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/11\/A-close-up-shot-of-several-rows-of-Lettuce-crops-planted-on-rich-soil.jpg\" alt=\"Rows of developing leafy crops showcasing its light green colored and ruffled leaves\" class=\"wp-image-1678\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/A-close-up-shot-of-several-rows-of-Lettuce-crops-planted-on-rich-soil.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/A-close-up-shot-of-several-rows-of-Lettuce-crops-planted-on-rich-soil-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/A-close-up-shot-of-several-rows-of-Lettuce-crops-planted-on-rich-soil-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/A-close-up-shot-of-several-rows-of-Lettuce-crops-planted-on-rich-soil-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/A-close-up-shot-of-several-rows-of-Lettuce-crops-planted-on-rich-soil-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/A-close-up-shot-of-several-rows-of-Lettuce-crops-planted-on-rich-soil-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/A-close-up-shot-of-several-rows-of-Lettuce-crops-planted-on-rich-soil-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Lettuce grows best in cool weather conditions.<\/figcaption><\/figure>\n\n\n\n<p>Leafy greens are a must-have in any vegetable garden. They&#8217;re easy to grow and super versatile, making them a great crop for beginners.<\/p>\n\n\n\n<p>Outdoor sowing is recommended for many <a href=\"https:\/\/www.botanicalinterests.com\/community\/blog\/lettuce-varieties-from-seed\/\">lettuce varieties<\/a>, but it is possible to sow lettuce indoors 4 to 6 weeks before your average last frost date. You can even<strong> continue to grow it indoors<\/strong> with the help of a grow light and containers, allowing you to harvest fresh lettuce leaves even if it&#8217;s still snowing outside.<\/p>\n\n\n\n<p>Lettuce grows best in cool weather and tends to bolt when it&#8217;s too hot. If you live in a warmer climate, your lettuce will perform better sown in fall for winter harvesting to avoid bolting.<\/p>\n\n\n\n<h2 id=\"Kale\" class=\"wp-block-heading\">Kale<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Kale.jpg\" alt=\"An overhead shot of ruffled leaves of a developing Kale crop in a well lit area\" class=\"wp-image-3090\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Kale.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Kale-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Kale-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Kale-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Kale-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Kale-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Kale-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">This cool-season green boasts impressive nutritional value and large, flavorful leaves.<\/figcaption><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.botanicalinterests.com\/products\/lacinato-dinosaur-kale\">Kale<\/a> is a cool-season green known for its<strong> impressive nutritional value<\/strong> and large, tasty leaves. If you haven&#8217;t started your kale seeds indoors already, March is a good time to sow. The ideal sowing window indoors is 4 to 6 weeks before your average last frost date.<\/p>\n\n\n\n<p>Don&#8217;t start these seeds too late. Like other cool-season crops, they don&#8217;t perform well in warmer weather. If you live in zones 5 to 7, you can also start seeds in March outdoors as long as the soil temperature is above 45\u00b0F.<\/p>\n\n\n\n<h2 id=\"Bunching_Onions\" class=\"wp-block-heading\">Bunching Onions<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Bunching-Onions.jpg\" alt=\"A shot of a wooden pellet bed with rows of developing Bunching Onion crops\" class=\"wp-image-3091\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Bunching-Onions.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Bunching-Onions-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Bunching-Onions-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Bunching-Onions-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Bunching-Onions-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Bunching-Onions-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Bunching-Onions-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Bunching onions will be ready to harvest in just 2 months.<\/figcaption><\/figure>\n\n\n\n<p>Bulb onions are started quite early (often in February) as they<strong> take a while to germinate<\/strong> before being transplanted outdoors. However, if your last frost date is a little closer, March is a good time to sow <a href=\"https:\/\/www.botanicalinterests.com\/products\/white-lisbon-bunching-scallion-onion-seeds\">bunching onions<\/a>.<\/p>\n\n\n\n<p>Bunching onions are a great way to add that essential onion flavor to your dishes without the same patience required before harvesting. They grow in many different soil types, are tolerant of heat and cold, and can be continuously sown throughout the season for a seemingly endless supply.<\/p>\n\n\n\n<p>Ready to harvest in just 2 months and useful in many dishes, bunching onions should be a staple in any vegetable garden. For indoor sowing in March, plant<strong> 8 to 10 weeks <\/strong>before your average last frost date and transplant your seedlings out 4 to 6 weeks before your average last frost date. These plants are cold tolerant and don&#8217;t mind the initial chill before the spring season arrives.<\/p>\n\n\n\n<h2 id=\"Celery\" class=\"wp-block-heading\">Celery<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Celery.jpg\" alt=\"A shot of rows of developing Celery crops in rich soil, all placed in a well lit area outdoors\" class=\"wp-image-3092\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Celery.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Celery-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Celery-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Celery-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Celery-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Celery-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Celery-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Sow celery indoors as it needs a long period to germinate.<\/figcaption><\/figure>\n\n\n\n<p>For gardeners in zones 3 to 5, there aren&#8217;t many crops to sow now. However, <a href=\"https:\/\/www.botanicalinterests.com\/products\/utah-celery-seeds\">celery<\/a> is one seed to start in March indoors because it needs a long period to germinate.<\/p>\n\n\n\n<p>Indoor sowing is recommended 10 to 12 weeks before your average last frost date if you want to harvest in spring. You can also sow indoors 10 to 12 weeks before transplanting outdoors in fall if you want <strong>a cool-season harvest.<\/strong><\/p>\n\n\n\n<p>Celery is sensitive to root disturbance, so it&#8217;s best to plant in <a href=\"https:\/\/www.botanicalinterests.com\/products\/recycled-paper-pots\" target=\"_blank\" rel=\"noreferrer noopener\">biodegradable pots<\/a> that can be transplanted straight into the ground.<\/p>\n\n\n\n<h2 id=\"Tomatoes\" class=\"wp-block-heading\">Tomatoes<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Tomatoes.jpg\" alt=\"A shot f clusters of developing Tomatoes on a vine in a well lit area\" class=\"wp-image-3093\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Tomatoes.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Tomatoes-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Tomatoes-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Tomatoes-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Tomatoes-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Tomatoes-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Tomatoes-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Sow tomato seeds indoors 4 to 6 weeks before you plan to transplant them into the garden.<\/figcaption><\/figure>\n\n\n\n<p>Summer may feel like an eternity away, but you can lay the foundations for your summer garden in March by starting seeds like <a href=\"https:\/\/www.botanicalinterests.com\/collections\/tomato\">tomatoes<\/a>. Starting tomato seeds indoors ensures your seedlings have the <strong>strongest possible start,<\/strong> limiting growth issues later on.<\/p>\n\n\n\n<p>When sowing indoors, plant 4 to 6 weeks before you plan on transplanting. This is usually 1 to 2 weeks after your average last frost date when the air temperature is at least 45\u00b0F to avoid cold damage to the young seedlings. You can also plant a little earlier and keep cold protection ready.<\/p>\n\n\n\n<p>As a summer crop, a seedling <strong>heat mat is helpful <\/strong>when germinating. The soil temperature needs to be at least 70\u00b0F, preferably closer to 80\u00b0F.<\/p>\n\n\n\n<h2 id=\"Eggplant\" class=\"wp-block-heading\">Eggplant<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Eggplant.jpg\" alt=\"A shot of 2 developing Eggplant crops alongside their leaves outdoors\" class=\"wp-image-3094\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Eggplant.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Eggplant-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Eggplant-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Eggplant-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Eggplant-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Eggplant-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Eggplant-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Sow eggplant seeds 10 to 12 weeks before the last frost.<\/figcaption><\/figure>\n\n\n\n<p>Like celery, <a href=\"https:\/\/www.botanicalinterests.com\/products\/black-beauty-eggplant-seeds\">eggplant<\/a> is another seed to start in March for those in cold regions. They need to be started indoors early, giving them plenty of time to germinate and establish strong roots before they move out into the garden. You may only see the fruits in summer, but this early start will give you the foundation for a strong crop later on.<\/p>\n\n\n\n<p>Sow your eggplant seeds <strong>10 to 12 weeks <\/strong>before your average last frost date. Only transplant outdoors 1 to 2 weeks after the last frost when the soil temperature is at least 60\u00b0F.<\/p>\n\n\n\n<p>Eggplants love heat, so the soil temperature when germinating should be <a href=\"https:\/\/extension.umn.edu\/vegetables\/growing-eggplant\" target=\"_blank\" rel=\"noreferrer noopener\">around 80\u00b0F<\/a>. Only transplant outdoors when you are sure there won&#8217;t be any upcoming cold snaps.<\/p>\n\n\n\n<h2 id=\"Peppers\" class=\"wp-block-heading\">Peppers<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Peppers.jpg\" alt=\"A shot f several developing Pepper crops with colors ranging from green to red\" class=\"wp-image-3095\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Peppers.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Peppers-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Peppers-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Peppers-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Peppers-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Peppers-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Peppers-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Wait to transplant peppers outside until daytime temperatures reach seventy degrees Fahrenheit.<\/figcaption><\/figure>\n\n\n\n<p>The final vegetable on this list is another <strong>warm-season staple<\/strong>:<a href=\"https:\/\/www.botanicalinterests.com\/products\/sweet-bell-blend-sweet-pepper-seeds\"> peppers<\/a>.<\/p>\n\n\n\n<p>Peppers take a long time to germinate, sometimes up to a month. Some varieties are fussier than others and need the perfect conditions for germination. Starting them indoors is recommended to give you the best control over this environment, improving germination rates and ensuring they get the heat they need to grow well.<\/p>\n\n\n\n<p>The soil temperature for germination should be between <strong>70\u00b0F and 90\u00b0F. <\/strong>Sow 8 to 10 weeks before you plan on transplanting, around 2 to 4 weeks after your average last frost date. Peppers will die quickly if temperatures are too cold, so wait until daytime temperatures are at least 70\u00b0F before you consider transplanting.<\/p>\n\n\n\n<h2 id=\"Basil\" class=\"wp-block-heading\">Basil<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Basil.jpg\" alt=\"An overhead shot of several developing aromatic herbs called Basil\" class=\"wp-image-2340\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Basil.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Basil-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Basil-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Basil-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Basil-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Basil-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Basil-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Basil comes in various colors, sizes, and flavors.<\/figcaption><\/figure>\n\n\n\n<p>I believe you can never have enough basil in an herb garden (mostly because I frequently make my own basil pesto). If you&#8217;ve made pesto before, you know you need plenty of leaves, which is why planting multiple <strong>basil plants is so useful.<\/strong> This herb also pairs well with any dish that calls for tomatoes.<\/p>\n\n\n\n<p>One of the great things about basil is the <a href=\"https:\/\/www.botanicalinterests.com\/collections\/basil\">varieties available<\/a>, allowing you to choose different colors, sizes, and flavor profiles to suit your needs.<\/p>\n\n\n\n<p>Start seeds indoors 4 to 6 weeks before transplanting outside when nighttime temperatures are at least 50\u00b0F. <strong>Continue sowing every 3 weeks, <\/strong>around 3 to 4 times, to ensure a continuous supply. They take a while to grow back after harvesting.<\/p>\n\n\n\n<h2 id=\"Oregano\" class=\"wp-block-heading\">Oregano<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Oregano.jpg\" alt=\"A close-up shot of leaves of a developing Oregano plant showcasing its textured leaves in a well lit area\" class=\"wp-image-2346\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Oregano.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Oregano-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Oregano-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Oregano-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Oregano-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Oregano-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Oregano-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Plant oregano seeds in a container over a heat mat to aid in their germination.<\/figcaption><\/figure>\n\n\n\n<p>If you love Mediterranean dishes, you need <a href=\"https:\/\/www.botanicalinterests.com\/products\/common-oregano-seeds\">oregano<\/a> in your garden. These tiny leaves are packed with scent and flavor, pairing well with tomato dishes just like basil. They also work well on meat and fish dishes or paired with other Mediterranean herbs in a dried mix.<\/p>\n\n\n\n<p>Start oregano seeds indoors 6 to 8 weeks before your average last frost date. If you can&#8217;t get the soil temperature warm enough, place the trays over a <strong>seedling heat mat.<\/strong><\/p>\n\n\n\n<h2 id=\"Thyme\" class=\"wp-block-heading\">Thyme<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Thyme.jpg\" alt=\"A shot of a developing Thyme herb outdoors\" class=\"wp-image-2344\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Thyme.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Thyme-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Thyme-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Thyme-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Thyme-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Thyme-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Thyme-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Thyme is useful in various culinary applications and also benefits pollinators.<\/figcaption><\/figure>\n\n\n\n<p>Like oregano, <a href=\"https:\/\/www.botanicalinterests.com\/products\/english-thyme-seeds\">thyme<\/a> is another herb that works well with most meat dishes. The leaves have a subtle earthy flavor that pairs well with a variety of foods. Another benefit of growing thyme in your garden is the adorable edible flowers that can be harvested or left on the plant to attract pollinators.<\/p>\n\n\n\n<p>You can follow the same planting instructions as for oregano. Do not plant the seeds too deeply, as they <strong>need light to germinate.<\/strong> After planting, they should emerge within 10 to 15 days.<\/p>\n\n\n\n<h2 id=\"Sage\" class=\"wp-block-heading\">Sage<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Sage.jpg\" alt=\"A close up shot of leaves of a Sage herb showcasing its texture and silver-green hue in a well lit area\" class=\"wp-image-2352\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Sage.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Sage-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Sage-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Sage-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Sage-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Sage-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Sage-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">This popular herb is both ornamental and edible.<\/figcaption><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.botanicalinterests.com\/products\/broadleaf-sage-seeds\">Sage<\/a> is a great ornamental and edible plant. The soft gray-green leaves and purple-blue flowers look great in the garden and attract pollinators, making it an excellent landscaping plant. The leaves are just as useful in the kitchen, often paired with pork, cheese, and other high-fat foods.<\/p>\n\n\n\n<p>Sage performs best when started in trays indoors 6 to 8 weeks before your average last frost date. Use a <strong>well-draining seed starting mix <\/strong>and monitor moisture levels to ensure even germination.<\/p>\n\n\n\n<h2 id=\"Rosemary\" class=\"wp-block-heading\">Rosemary<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Rosemary.jpg\" alt=\"A shot of a Rosemary herb that is developing in a terracotta pot indoors\" class=\"wp-image-3096\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Rosemary.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Rosemary-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Rosemary-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Rosemary-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Rosemary-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Rosemary-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/03\/Rosemary-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Slow to germinate, rosemary is known for its versatility in the kitchen and garden.<\/figcaption><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.botanicalinterests.com\/products\/rosemary-heirloom-seeds\">Rosemary<\/a> is great on its own but also pairs well with all the other herbs on this list, indicating its versatility. You can pair it with meats, vegetables, and just about anything that needs a unique woody flavor.<\/p>\n\n\n\n<p>It also <strong>adds ornamental value,<\/strong> with needle-like leaves and adorable purple flowers that look great left on their own or trimmed into a more formal hedge shape.<\/p>\n\n\n\n<p>Rosemary needs plenty of time to germinate and establish before transplanting outdoors. Start seeds in March if your last frost date is 10 to 12 weeks away.<\/p>\n\n\n\n<h2 id=\"Marigolds\" class=\"wp-block-heading\">Marigolds<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/08\/marigold-sow-and-grow.jpg\" alt=\"Marigolds growing in a garden bed, featuring vibrant orange and yellow flowers with lush green, fern-like leaves.\" class=\"wp-image-600\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/marigold-sow-and-grow.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/marigold-sow-and-grow-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/marigold-sow-and-grow-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/marigold-sow-and-grow-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/marigold-sow-and-grow-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/marigold-sow-and-grow-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/marigold-sow-and-grow-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Sow marigolds 4-6 weeks before the last frost date.<\/figcaption><\/figure>\n\n\n\n<p>Bright marigold flowers are sure to liven up your garden after a gloomy winter. There are many types and cultivars to choose from, and many of them are edible. Compact varieties like &#8216;<a href=\"https:\/\/www.botanicalinterests.com\/products\/lemon-drop-french-marigold-seeds\">Lemon Drop<\/a>&#8216; also look great in containers, making them ideal for gardeners with limited outdoor space or anyone who wants to add a pop of color to their patio or balcony.<\/p>\n\n\n\n<p>Indoor sowing is recommended around 4 to 6 weeks before your average last frost date. After starting seeds in March, <strong>seedlings will emerge in 1 to 2 weeks.<\/strong><\/p>\n\n\n\n<h2 id=\"Alyssum\" class=\"wp-block-heading\">Alyssum<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2025\/02\/Sweet-Alyssum.jpg\" alt=\"A close-up shot of white flower clusters of the Alyssum plant\" class=\"wp-image-3020\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/02\/Sweet-Alyssum.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/02\/Sweet-Alyssum-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/02\/Sweet-Alyssum-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/02\/Sweet-Alyssum-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/02\/Sweet-Alyssum-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/02\/Sweet-Alyssum-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2025\/02\/Sweet-Alyssum-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">This pretty ground cover will perform best and produce more flowers in cooler weather conditions.<\/figcaption><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.botanicalinterests.com\/products\/tiny-tim-sweet-alyssum-seeds\">Sweet alyssum<\/a> is the ideal flower to fill any gaps in your garden. It is compact and explodes with flowers from spring to frost, releasing their sweet fragrance all season long. It also grows well in containers, particularly hanging baskets, if you want to keep it close by.<\/p>\n\n\n\n<p>Sweet alyssum performs better and flowers more prolifically <strong>in cooler weather. <\/strong>Start seeds in March 4 to 6 weeks before your last frost date, and keep them in a sunny spot but protected from excessive heat, particularly in summer.<\/p>\n\n\n\n<h2 id=\"Morning_Glory\" class=\"wp-block-heading\">Morning Glory<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/08\/morning-glory-sow-and-grow-guide.jpg\" alt=\"Close-up of a morning glory flower blooming in a garden, showing its vibrant purple petals and green leaves.\" class=\"wp-image-1000\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/morning-glory-sow-and-grow-guide.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/morning-glory-sow-and-grow-guide-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/morning-glory-sow-and-grow-guide-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/morning-glory-sow-and-grow-guide-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/morning-glory-sow-and-grow-guide-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/morning-glory-sow-and-grow-guide-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/08\/morning-glory-sow-and-grow-guide-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">This vining flower boasts colorful blooms from summer until the first frost.<\/figcaption><\/figure>\n\n\n\n<p>Morning glory flowers are sure to catch your eye wherever they are planted. The colorful blooms appear from summer until the first frost and come in a range of fascinating hues. Cultivars like &#8216;<a href=\"https:\/\/www.botanicalinterests.com\/products\/flying-saucer-morning-glory-seeds\">Flying Saucer<\/a>&#8216; have massive blooms with blue and white striped flowers, or you can choose a blend like &#8216;<a href=\"https:\/\/www.botanicalinterests.com\/products\/sunrise-blend-morning-glory-seeds\">Sunrise<\/a>&#8216; with pink, purple, blue, and white blooms in various patterns.<\/p>\n\n\n\n<p>Morning glories are <strong>aggressive or considered invasive <\/strong>in some areas, so check your local regulations before planting these seeds. They are sensitive to root disturbance and perform best when sown outside. However, you can start them indoors 4 to 6 weeks before the last frost if you sow in biodegradable pots that can be directly planted in the ground to avoid handling the roots.<\/p>\n\n\n\n<h2 id=\"Black-Eyed_Susan\" class=\"wp-block-heading\">Black-Eyed Susan<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Black-Eyed-Susan.jpg\" alt=\"A shot of a composition of Black-Eyed Susan flowers showcasing its yellow petals and dark brown center in a well lit area outdoors\" class=\"wp-image-1719\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Black-Eyed-Susan.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Black-Eyed-Susan-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Black-Eyed-Susan-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Black-Eyed-Susan-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Black-Eyed-Susan-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Black-Eyed-Susan-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Black-Eyed-Susan-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Black-eyed Susans have a classic look, instantly recognizable by gardeners and pollinators.<\/figcaption><\/figure>\n\n\n\n<p>For those who prefer native flowers, <a href=\"https:\/\/www.botanicalinterests.com\/products\/black-eyed-susan-seeds\" target=\"_blank\" rel=\"noreferrer noopener\">black-eyed Susan<\/a> is a great seed to start in March. The sunny yellow flowers with their classic black centers are instantly recognizable, not only by gardeners but <a href=\"https:\/\/marylandgrows.umd.edu\/2018\/09\/14\/black-eyed-susans-attract-pollinators-and-other-beneficial-insects\/\" target=\"_blank\" rel=\"noreferrer noopener\">also by pollinators<\/a>. They attract bees and butterflies during their flowering period, and the winter seed cones supply food for birds as well.<\/p>\n\n\n\n<p>Start your seeds indoors 8 to 10 weeks before your average last frost date. While you can also direct sow outdoors, your black-eyed Susan <strong>may bloom in the first year<\/strong> if you sow indoors early enough.<\/p>\n\n\n\n<h2 id=\"Dianthus\" class=\"wp-block-heading\">Dianthus<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Dianthus.jpg\" alt=\"A close-up shot of a composition of pink lowers of the Dianthus\" class=\"wp-image-1982\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Dianthus.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Dianthus-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Dianthus-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Dianthus-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Dianthus-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Dianthus-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/11\/Dianthus-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Dianthus includes many species known for their fragrant, intricate blooms.<\/figcaption><\/figure>\n\n\n\n<p>If you want to start your cut flower garden from seed this March, <a href=\"https:\/\/www.botanicalinterests.com\/collections\/dianthus\">dianthus<\/a> is a good choice. The many species in this genus are known for their intricate flowers that last long in a vase. They are a staple in cottage gardens, but their variety means they&#8217;ll suit almost any garden design.<\/p>\n\n\n\n<p>Dianthus seeds should be started 8 to 10 weeks before your average last frost date. <strong>They don&#8217;t always flower<\/strong> in the first year, depending on what you&#8217;re growing, but they are well worth the wait.<\/p>\n\n\n\n<h2 id=\"Shasta_Daisy\" class=\"wp-block-heading\">Shasta Daisy<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1600\" height=\"900\" src=\"https:\/\/proxy-botanicalinterestscom.epicgardening.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Shasta-Daisy.jpg\" alt=\"An overhead shot of a composition of Daisy flowers in a well li area outdoors\" class=\"wp-image-2194\" srcset=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Shasta-Daisy.jpg 1600w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Shasta-Daisy-300x169.jpg 300w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Shasta-Daisy-1024x576.jpg 1024w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Shasta-Daisy-768x432.jpg 768w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Shasta-Daisy-1536x864.jpg 1536w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Shasta-Daisy-920x518.jpg 920w, https:\/\/www.botanicalinterests.com\/community\/blog\/wp-content\/uploads\/2024\/12\/Shasta-Daisy-414x233.jpg 414w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><figcaption class=\"wp-element-caption\">Shasta daisies feature bright white blooms with golden centers.<\/figcaption><\/figure>\n\n\n\n<p>The Shasta daisy is one of the most classic garden perennials you can grow. The bright white blooms with golden centers are instantly recognizable and look amazing when planted en masse. These perennials are also easy to grow from seed and attract pollinators to your garden beds.<\/p>\n\n\n\n<p>Start seeds indoors in March, 6 to 8 weeks before your average last frost date, <strong>sprinkling them on the surface<\/strong> of your seed starting mix. They should emerge in 10 to 15 days and will be ready to transplant after all risk of frost has passed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>No matter your climate or available garden space, there are plenty of wonderful vegetables, herbs, and flowers you can start from seed this month. Gardening expert Madison Moulton lists 21 seeds to start indoors in March.<\/p>\n","protected":false},"author":146077,"featured_media":3073,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-3081","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-seed-starting"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>21 Seeds to Start Indoors in March<\/title>\n<meta name=\"description\" content=\"Check out the seeds you can start growing indoors in March!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.botanicalinterests.com\/community\/blog\/wp-json\/wp\/v2\/posts\/3081\" \/>\n<meta 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