Snowpuff Cosmos brings airy, delicate charm to summer and fall gardens with pure white flowers that emerge reliably across 56 to 84 days from seed. This cultivar of Cosmos bipinnatus grows 36 to 48 inches tall and thrives in full sun with minimal water once established, making it an excellent choice for gardeners seeking low-maintenance color. The plant blooms steadily from June through November, attracting pollinators while requiring virtually no fussing once it takes hold.
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Full Sun
Low
2-11
48in H x 24in W
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High
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These cosmos produce abundant white blooms on graceful, fine-textured foliage that sways in the slightest breeze. Drought tolerance is genuine; once past the establishment phase, Snowpuff needs water only during extended heat and dry spells. The long bloom window and pollinator magnetism mean you'll enjoy continuous flower production from early summer straight through the first frosts of late fall.
Snowpuff Cosmos shines as a cut flower, offering airy stems and long-lasting blooms for fresh arrangements. In the garden, it works beautifully as a background layer or vertical accent in borders, adding height and movement without heaviness. The delicate white flowers also soften bright color combinations and provide breathing room in densely planted beds.
No timeline data available yet for this variety.
Start seeds indoors 4 to 5 weeks before your last spring frost. Sow at a depth of 1/8 to 1/4 inch and keep the soil at 60 to 75 degrees Fahrenheit. Seeds typically sprout within 3 to 10 days. Transplant seedlings outdoors after frost danger has passed.
Harden off seedlings by gradually exposing them to outdoor conditions over 7 to 10 days. Transplant after the last spring frost when soil has warmed. Space plants 24 inches apart to ensure good air flow around mature plants.
Direct sow seeds in spring after the last frost has passed. Scatter seeds or plant them at 1/8 to 1/4 inch depth. Thin seedlings to 24 inches apart once they develop true leaves.
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