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Sea Shells Blend Cosmos Seeds
Sea Shells Blend Cosmos Seeds
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Product Details
Product Details
These charming cosmos with fluted, seashell-shaped petals will be a beautiful addition to your flower patch! In shades of white, pink, rose, and crimson, they make an excellent cut flower. Easy to care for; once established they are drought tolerant. They prefer neglect over attention, making them a perfect choice for wildflower or naturalized areas.
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- Variety Info
- Sowing Info
- Growing Info
Variety Info
Family: Asteraceae
Type: Cosmos (Learn more)
Native: Mexico and Arizona
Hardiness: Annual
Exposure: Full sun
Bloom Period: Summer to frost
Plant Dimensions: 3'-5' tall, 18"-36" wide
Variety Info: 3"–4" solid colored (and a few bi-colored) blossoms of white, pink, rose, and crimson, with rolled, quilled petals surrounding yellow centers
Attributes: Attracts Hummingbirds, Attracts Pollinators, Cut Flower, Drought Tolerant, Deer Resistant
Sowing Info
When to Sow Outside: RECOMMENDED. 1 to 2 weeks after your average last frost date, and when soil temperature is at least 60°F.
When to Start Inside: 4 to 6 weeks before your average last frost date.
Days to Emerge: 5–10 days
Seed Depth: Barely cover
Seed Spacing: A group of 3 seeds every 12"
Thinning: When 1" – 2" tall, thin to 1 every 12"
Growing Info
Harvesting: For longest vase life, harvest in the morning and cut stems just as flower buds begin to open.
- AdrienneVerified ReviewerRated 5 out of 5 starsNov 25, 2025Lovely, fascinating, wish they were native.
So very pretty!!! Some taller than me! Lush bright greenery with very pretty two-toned pink tubular petaled-flowers. Bright yellow center. Cosmos always lovely but this version has a Very interesting flower! Friends are amazed by these, having never seen another flower like this! These don't last after cutting in a vase as long as single cosmos, who can last many days, these are a couple days in my experience. Now that I'm getting clued in on planting native I'm realizing would prefer to promote and pamper local plants for the local critters. But these seashell cosmos are really beautiful, unique, and easy to take care of, in Denver.
Which best describes you as a gardener? IntermediateEGEpic GardeningNov 25, 2025Hey Adrienne,
Thank you so much for taking the time to share your experience with our Sea Shells Blend Cosmos Seeds! We love hearing that they grew taller than you and produced those stunning two-toned pink tubular flowers that have your friends amazed. We totally understand your point about the shorter vase life compared to regular cosmos, but it sounds like they're absolutely gorgeous in the garden. We also appreciate your thoughtfulness about native plants and supporting local ecosystems - that's such an important consideration for gardeners. Thanks for sharing your beautiful growing experience with us in Denver. Keep on growing 🌻️
- Stephanie V.Verified BuyerRated 5 out of 5 starsNov 4, 2025Fall blooms in zone 10a
Such a joy
Which best describes you as a gardener? BeginnerEGEpic GardeningNov 6, 2025Hey Stephanie,
Thank you so much for this fantastic 5-star review! "Such a joy" with fall blooms in zone 10a is exactly what we love to hear about Sea Shells Blend Cosmos Seeds - and we absolutely love that you've discovered how these unique shell-shaped petals can bring such happiness to your garden during the fall growing season!
That's exactly the kind of delightful experience that makes Sea Shells Blend Cosmos such garden treasures! There's nothing quite like having cosmos that bloom beautifully in warmer zones during fall months, providing those distinctive fluted, shell-like petals in gorgeous mixed colors that create such a joyful display when other flowers might be winding down!
Your fall blooming success in zone 10a will be so inspiring for other warm-climate gardeners who want to discover just how rewarding and cheerful Sea Shells Blend Cosmos Seeds can be for creating those unique, shell-petaled displays that bring pure joy to the garden during extended growing seasons!
Keep on growing 🌻️
- Sidney S.Verified BuyerRated 5 out of 5 starsMay 11, 20245 Stars
Love the Cosmos.
Which best describes you as a gardener? Intermediate - Chaka T.Rated 5 out of 5 starsAug 19, 20235 Stars
Absolutely stunning. Robust and beautiful. There is only one bicolor like this but it’s worth it and the others are beautiful too, just not as eye catching. The unique blossoms are perfection. Even the “plain” pale pink ones are beautiful. The tubular shape gives it so much simple depth. I go out and look at it e dry day.
- Lisa P.Verified BuyerRated 5 out of 5 starsNov 15, 2025Beautiful!
This variety is gorgeous. I love the shape of the petals.
Which best describes you as a gardener? IntermediateEGEpic GardeningNov 24, 2025Hey Lisa,
Thank you so much for taking the time to share your experience with our Sea Shells Blend Cosmos Seeds! They really are beautiful! It's wonderful that you're enjoying the gorgeous blooms this variety produces. Thanks for sharing your growing success with us. Keep on growing 🌻️
