How to Grow Herbs On Your Kitchen Windowsill

I don’t know if it’s just me, but when I buy grocery store herbs, they are usually half-wilted and come in quantities I'll never use before they rot in the fridge. Plus, they don’t offer the same satisfaction as picking herbs you grew yourself. But what if you don’t have any outdoor growing space?

Growing herbs on a windowsill solves all those problems while giving you better flavor and the satisfaction of snipping exactly what you need when you need it.

Indoor herb growing isn't quite the same as outdoor gardening, though. Light levels are lower, air is typically drier, and temperatures are more stable. Some herbs adapt beautifully to these conditions while others struggle, no matter what you do.

The kitchen is ideal for windowsill herbs because you're there daily preparing meals, which means you'll remember to water and harvest regularly instead of letting plants sit in a forgotten corner. Plus, the humidity helps compensate for dry indoor air that herbs normally hate.

Here's how to set up a productive windowsill herb garden that actually produces enough to use.

Choosing the Right Herbs

Not all herbs adapt well to indoor growing, and trying to force the wrong ones leads to frustration and wasted effort. Some herbs are perfectly happy on windowsills, while others struggle no matter what you do.

Basil grows quickly indoors and produces well, but only if you give it enough light (that’s one of the reasons why I’ve never managed to grow it indoors successfully). It's one of the easiest herbs to start from seed and will keep producing as long as you harvest regularly.

Parsley handles lower light better than most herbs, making it perfect for windowsills that don't get full sun. Both flat-leaf and curly varieties work, though flat-leaf tends to have better flavor.

Chives are also nearly indestructible on windowsills and are one of my go-to options. They tolerate lower light, don't mind being harvested heavily, and will keep producing with minimal care. The mild onion flavor works in countless dishes. Plus, you can grow them in soil or water.

Skip rosemary unless you have a very bright windowsill. It needs intense light that most indoor spaces can't provide, and it's also quite sensitive to overwatering. Outdoor rosemary plants brought inside for winter often decline despite our best efforts.

Plant thyme outdoors instead. It's a hardy herb that struggles indoors for similar reasons. It wants bright light and tends to get leggy and weak without it. If you're determined to grow it, choose a south-facing window and expect it to look scraggly compared to outdoor plants.

Containers

The right container is essential to a solid harvest and no root problems. Most windowsill herb failures come down to drainage issues that the wrong container either creates, or makes worse.

Drainage holes are a must for windowsill herbs. These plants hate sitting in water, and without drainage, you're basically guaranteed to overwater and kill them with root rot.

Medium-sized pots work well for most herbs. While you can grow in smaller containers, restricted roots will mean a limited harvest. Avoid massive containers that hold too much moisture (and won’t fit on your windowsill anyway).

Group pots on a waterproof tray to protect your windowsill from water damage. Cute decorative saucers work for something more aesthetic, but a simple plastic tray is fine to catch the drips when you water.

Growing from Seed

Starting herbs from seed is cheaper than buying plants and gives you access to more varieties than garden centers typically stock.

Basil germinates quickly from seed, usually within a week if conditions are warm. Sprinkle seeds on moist potting mix, barely cover them, and keep the soil consistently damp until seedlings emerge.

Parsley takes forever to germinate. Soak seeds overnight before planting to speed things up slightly. Don't give up if nothing happens for weeks; they're just slow.

Chives are easy to grow from seed but slow to reach usable size. If you're impatient, buy a small plant and divide it immediately into several pots. Each division will grow into a full clump faster than seedlings would.

Managing Light Levels

Light is the biggest limiting factor for windowsill herbs. You can adjust watering and fertilizing, but you can't really change how much light your windows provide. Understanding what you're working with helps you choose appropriate herbs and know when supplemental lighting is necessary.

South-facing windows provide the most light for windowsill herbs. This is where you should put basil and any other full sun herbs you're determined to grow indoors.

East and west windows work for parsley, chives, and mint. They'll get 4 to 6 hours of direct sun, which isn't ideal but is workable for these more shade-tolerant herbs.

North-facing windows don't provide enough light for any herbs to thrive. You can supplement with a grow light if that's your only option, but herbs won't perform well with just north window light.

Rotate pots weekly so all sides get light exposure. Herbs grown in windows tend to lean toward the light source, and regular rotation keeps growth more balanced and prevents plants from getting too lopsided.

Watering

Watering kills tons of windowsill herbs. The challenge is that herbs want consistent moisture but will rot if they're kept too wet. Finding that balance requires attention to soil conditions rather than following rigid watering schedules.

Check soil moisture before watering rather than following a schedule. Stick your finger an inch into the soil. If it's dry, water. If it's still damp, wait. Herbs need consistent moisture but hate being soggy.

Water thoroughly when you do water, until it drains from the bottom. Shallow watering encourages shallow roots and doesn't fully hydrate the roots. Reduce watering in winter when growth slows. Herbs use less water when they're not actively growing, and overwatering during dormant periods can kill plants quickly.

Fertilizing

Indoor herbs need feeding since they're grown in limited soil that doesn't get replenished naturally. But they need much less than you'd think, and overfertilizing creates problems that are worse than not feeding at all.

Herbs in pots need minimal fertilizer. Too much feeding produces lush foliage with weak flavor (the opposite of what you want). Use a diluted liquid fertilizer every six weeks during active growth periods. Mix it at half the strength recommended on the package. Herbs are generally light feeders compared to other flowering plants.

Skip fertilizing in winter when growth slows naturally. Pushing growth during low-light months produces weak, leggy plants that are more susceptible to growth problems.

Harvesting

How you harvest determines whether your herbs produce abundantly or slow down after a few cuttings. Regular harvesting actually encourages production, but you need to harvest correctly to keep plants healthy and productive.

Harvest regularly to encourage bushier growth and prevent flowering. Most herbs produce more when you harvest frequently, and letting them flower signals the plant to stop producing leaves (although they won’t flower as much indoors as they do outdoors).

Take no more than one-third of the plant at a time. This ensures the plant can recover quickly and continue growing rather than getting stressed by heavy harvesting. Cut just above a leaf node where new growth will emerge.

Common Problems

Even with good care, windowsill herbs can develop issues that you need to recognize and address quickly. Most problems are fixable if you catch them early, but they'll kill plants if ignored.

Leggy, stretched growth means insufficient light. Move plants to a brighter window or add supplemental lighting. You can't fix leggy growth, but proper light prevents it from getting worse.

Yellow leaves usually indicate overwatering or poor drainage. Check that pots have adequate drainage holes and reduce watering frequency. Yellow lower leaves are normal as plants mature, but widespread yellowing is a problem.

Fungus gnats appear indoors when the soil stays too moist. Let the soil dry more between waterings. The tiny flies are annoying, but luckily, they don't harm plants.

Windowsill herbs that stop growing completely might be rootbound. Check if roots are circling the pot bottom, and repot into a slightly larger container if needed. Spring is the best time for repotting.