Purple Petra Basil Seeds


This packet sows up to 120 feet.
3.25 out of 5 stars
(8 reviews)
Availability: In Stock
A mild, sweet taste that is perfect for those who love basil's flavor, but shy away from too much herbal spiciness. It's excellent in a variety of dishes, including pesto, pasta, and salads. 'Purple Petra' also makes a lovely pink-tinted vinegar or oil. Grow it as a companion plant for your tomatoes or in other areas of the garden as an ornamental. Try pairing it with 'Lemon Drop' French marigold or Bells of Ireland for vibrant contrast.
$2.49 500 mg (~240 seeds)

Botanical Name: Ocimum basilicum

Family: Laminaceae

Native: Probably Africa, but in cultivation for so long that it cannot be verified.

Hardiness: Frost-sensitive annual

Plant Dimensions: 24" tall, 18"–24" wide

Variety Information: Large, dark reddish-purple glossy leaves with a mild, sweet flavor. Small lavender-blue flower spikes appear in late summer.

Exposure: Full sun to part shade

Attributes: Good for Containers

When to Sow Outside: 1 to 2 weeks after your average last frost date, and when soil temperature is at least 60°F, ideally 65°–85°F. Successive Sowings: We recommend 3 or 4 successive sowings every 3 weeks after initial sowing.

When to Start Inside: RECOMMENDED. 4 to 6 weeks before transplanting outside. Transplant when your nighttime temperatures are above 50°F.

Days to Emerge: 5 – 10 Days

Seed Depth: ¼"

Seed Spacing: A group of 2 seeds every 12"

Row Spacing: 12"

Thinning: When 2" tall, thin to 1 every 12"

Harvesting: Basil flavor is best before the plant flowers. Harvest up to 1/3 of the plant at a time, leaving enough for the plant to be healthy and keep producing. Harvest prior to a frost; basil is very frost sensitive.

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Purple Petra Basil Seeds Reviews

8 reviews

A sweet purple

5 out of 5 stars May 16, 2019
This purple basil has a pleasant flavor, not sharp like some of the purples can be. Great on Pizza!
Tony from MA


1 out of 5 stars Jun 17, 2020
I purchased this and planted indoors according to instruction. It sprouted in a day or two and promptly died. I don't recommend.
Ed from VA
Owner Response: We are sorry you had difficulty growing these seeds. It sounds like they possibly experienced damping off (a fungal disease) or over/underwatering. When we experience issues after a seed has germinated it is helpful to look for environmental factors that could be improved since the seed was successful and the growth of the plant depends on environmental factors like light, moisture, soil nutrients, and correct temperatures to photosynthesize and grow. Please do not hesitate to contact us with questions or to troubleshoot problems like this--we are always happy to help!


5 out of 5 stars Jul 10, 2020
Awesome seeds. My pack is 3 years old and I stored them improperly all last summer sometimes they reached over 100 degrees and they still germinated this year at a 100 percent success rate and they are big beautiful tasty plants now.
Alyssa from PA

A waste of money

1 out of 5 stars Aug 31, 2020
I purchased two basil varieties. I cold not get either to grow starting indoors or out. After several tries, I gave up.
Arthur Hass from VA
Owner Response: Hi Arthur, Thank you for sharing your experience. It looks like you have complaints about a couple of basil seed packets. We would love to talk to you and help you be successful in growing these seeds. Basil needs soil that is 65-85 degrees F and consistent moisture to germinate. Our seeds are tested frequently by a third-party laboratory to ensure germination rates exceed federal and our own standards. for germination. A customer service agent will be with you soon to see how we can help.

Purple Petra

1 out of 5 stars Jan 7, 2021
Did not Germinate
Tara A Sumner from NY
Owner Response: Hi Tara, Thank you for sharing your experience. A tip is that basil needs very warm soil (65 to 85 Fahrenheit) and as a reminder soil temperature in the spring lags behind air temperature. You can find more tips in our Basil: Sow and Grow Guide linked on the "learn more" tab of this product page. Rest assured our seeds are tested regularly to ensure they exceed federal germination standards and our own. A customer service agent will be in contact to assist you.

Lovely Basil

4 out of 5 stars Apr 12, 2021
This basil is very pretty and it's nice to mix it in with complementary colored flowers in a bouquet. It is excellent added to salads or after a dish has been cooked but a little too mild to be really noticed for flavor cooked into a dish, except for color. I started leftover seeds from last year already, no problem. The trick is a warming mat, a hydrogen peroxide rinse (1 part 3% hydrogen peroxide to 2-3 parts water) to start seed germination. The problem I have is once they are planted outside all the insects and creatures tend to love it and eat it before I can get to a lot of it.
JC from NJ

Beautiful Purple Basil!

4 out of 5 stars Jul 11, 2022
I love how big they are and smells great!
Kira from IL

Petra Basil - Outstanding

5 out of 5 stars Oct 3, 2022
I grow a lot of basil in my garden. I also sell a lot of basil at the local farmers market. It's probably my best seller. Petra did very well for me at the market, and I also have two beautiful specimens in my garden now. I grew it mostly as an ornamental, but it is very tasty as well. Highly recommended.
Link Robertson from TX

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