Botanical Interests
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Product Details
Product Details
For ease of growing, this sunny perennial can't be beat! Plants start producing semi-double and double yellow blooms quickly in summer and continue to flower until fall frost. Care-free plants thrive in full sun and grow well even in heat, humidity, and poor or dry soils. A great plant for the wildflower or pollinator garden or perennial border. Exquisite combined with blue flowers. Long-lasting flowers are beautiful in fresh arrangements and bouquets.
Your hardiness zone is
- Variety Info
- Sowing Info
Variety Info
Family: Asteraceae
Native: North America
Hardiness: Perennial in USDA zones 4-9
Exposure: Full sun
Bloom Period: Summer to frost
Plant Dimensions: 36" tall
Variety Info: 2"– semi-double and double yellow flowers on 18"–24" slender, wiry stems
Attributes: Attracts Pollinators, Cut Flower, Deer Resistant, Drought Tolerant, Heat Tolerant
Sowing Info
When to Sow Outside: 1 to 2 weeks before your average last frost date, or as late as 8 weeks before your average first frost date.
When to Start Inside: 6 to 8 weeks before your average last frost date.
Sprouts in: 5–10 days
Plant Seeds (Depth): Press into surface
Space Seeds: A group of 3 seeds every 12"
Thinning: When 1" tall, thin to 1 every 12"
- Brandon P.Rated 5 out of 5 starsNov 20, 20245 Stars
This was really fun to grow! I am in zone 10 here in Hawaii. We get day time temps of mid 80’s and night time temps of mid 60’s. I started the seeds in April and now they are starting to bloom. I’m excited to start more seeds and plant them all over my garden.
Which best describes you as a gardener? Intermediate - Cecily G.Rated 5 out of 5 starsAug 27, 20245 Stars
Started seed indoors April 2023 and transplanted out into the garden in June (Zone 5). They did not bloom their first year but grew nice strong leaves. This year, 2024, I got a first flush of booms in June and then a second more vigorous flush of blooms mid-Summer. They are still going strong and will most likely have blooms through fall. The only thing is I’m not sure how much of a “double” flower I’m seeing and they just look like a normal yellow coreopsis flower. Oh well still bright and cheery! Thanks BI!
Which best describes you as a gardener? IntermediateEGEpic GardeningAug 28, 2024Hey Cecily,
Thank you so much for sharing your photos. Your flowers look incredible! Keep on growing 🌻️
- Alexis K.Rated 5 out of 5 starsJun 8, 20245 Stars
Beautiful. Did not bloom the first year, bit did put on a lot of leafy growth. This year they are full of beautiful yellow flowers.
Which best describes you as a gardener? Intermediate - K. P.Rated 3 out of 5 starsSep 18, 2026A fancy ant hill....
I really wanted to love this plant but they didn't bloom all year. They created a healthy looking mound of leaves and I would check them daily to see if any blooms would form, but they didn't. They basically became fancy ant hills! Ants are extremely attracted to them and formed a whole community under and between the stems on all 3 plants. I got impatient and pulled them out to make room for my winter garden. I saw another review were they said they got blooms the 2nd year. Maybe I should've waited. But with the ants and limited room in my small garden, I just didn't have the luxury to wait another year for blooms.
Which best describes you as a gardener? IntermediateEGEpic GardeningSep 20, 2026Hey K.,
Thank you so much for taking the time to share your experience with us. We really appreciate your honesty, and we're sorry to hear that the Double Sunburst Coreopsis didn't bloom the way you were hoping for in that first year. We totally understand your decision to pull them out, especially with the ant situation and limited space in your garden - that sounds frustrating! Your feedback about the timing and the unexpected visitors is really valuable to us, and we're committed to helping make your growing experience the best it can be.
Thank you again for giving our seeds a try, and we hope you have great success with your winter garden. Keep on growing 🌻
- mercedesVerified BuyerRated 5 out of 5 starsFeb 14, 2026beautiful and germinated 100%
these are very beautiful flowers, germinated all of the seeds
Which best describes you as a gardener? BeginnerEGEpic GardeningFeb 16, 2026Hey Mercedes,
That's absolutely wonderful to hear about your Double Sunburst Coreopsis Seeds! A 100% germination rate is fantastic! The Double Sunburst variety really does put on quite a show with those gorgeous blooms, and we're so glad you chose our seeds for your garden. Thank you for choosing us and for sharing your growing success with us. Keep on growing 🌻️
