Cosmos Sea Shells Seeds (Cosmos bipinnatus) Whimsical fluted petals in pink, white, and magenta tones. Great for borders, wildflower gardens, and cut flower arrangements
Minimum: 25+ Seeds
Charming, Pollinator-Friendly Flowers with Unique Tubular Petals
Bring an artistic twist to your garden with Cosmos ‘Sea Shells’, an enchanting heirloom variety that stands out with its tubular, seashell-like petals in dreamy shades of pink, white, and magenta. These whimsical blooms look like they’ve been hand-rolled by nature, adding playful elegance to borders, wildflower meadows, pollinator gardens, and cut flower arrangements.
Light and airy, with fern-like foliage and a generous bloom season, ‘Sea Shells’ is easy to grow, heat-tolerant, and beloved by bees, butterflies, and hummingbirds.
🌿 Why Grow Cosmos ‘Sea Shells’?
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🌸 Unique Fluted Petals – Standout tubular petals add visual intrigue
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🎨 Soft Pastel Palette – Pink, white, and magenta tones for charming displays
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🐝 Pollinator Magnet – Attracts bees, butterflies & beneficial insects
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✂️ Excellent Cut Flowers – Long-lasting and eye-catching in floral arrangements
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🌼 Easy to Grow – Thrives in poor soil and tolerates drought once established
🌺 Perfect For:
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Cottage gardens & heirloom flower beds
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Wildflower meadows & naturalized plantings
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Pollinator patches & bee-friendly borders
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Floral arrangements & cut flower bouquets
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Kids’ gardens and whimsical planting themes
📊 Planting & Growing Info:
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Botanical Name: Cosmos bipinnatus ‘Sea Shells’
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Type: Annual
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Height: 36–48 inches
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Spacing: 12–18 inches
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Sun: Full sun
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Soil: Well-drained; tolerates poor soil
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Bloom Time: Summer to frost
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Zones: Grown as annual in all zones
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Water Needs: Low to moderate
🧠 Pro Tips:
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Deadhead regularly to extend blooming season
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Sow directly after last frost or start indoors 4–6 weeks prior
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Pairs beautifully with zinnias, black-eyed Susans, and bachelor’s buttons
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Great for attracting beneficial insects to your vegetable garden
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Harvest when flowers are just opening for longest vase life
🎐 Whimsy in Bloom
With their seashell-like form and soft, swirling hues, Cosmos ‘Sea Shells’ delivers graceful, eye-catching color while inviting pollinators to play. Whether in a vase or a border, they’re a joyful addition to any summer garden.