Cosmos bippanatus, cultivars display cheerful, daisy-like flowers with yellow centres. The plants, native to Mexico, usually top out at 2 to 5 feet, but may attain heights of up to 8 feet.
Decorative White Blush cosmos have unique, fluted petals that form rolled, seashell-like rays around sunny-yellow centres. Their effect is three-dimensional, adding multifaceted texture to every summer bouquet. White Seashells are easy to grow and the strong stemmed plants will fill your garden with satiny 3 to 4 inch blossoms even in hot sun and poor soil. These lovely flowers dance nonstop above lacy foliage and butterflies flock to them all summer long.
Sow seeds 1/2 inch deep, 1 to 2 inches apart in a sunny location in well-worked garden soil once danger of frost is past. Cover lightly and keep seed bed moist. Seedlings emerge in 7 to 10 days. Keep well weeded and watered while plants are young; mature cosmos can handle hot and dry conditions.
To start early indoors, sow seeds 1 inch apart in a container of seed starting mix, 4 to 6 weeks before last expected frost. Cover ½ inch deep, keep moist and provide a good light source until ready to go outside. Plant outdoors once weather warms up after gradually acclimating seedlings to outdoor conditions. When large enough to handle, space seedlings 8 inches apart.
These long lasting, free flowering plants do well in all soil types. Sow several times through June for a succession of fresh flowers. Cutting generous bouquets actually prolongs the blooming season. Cosmos pair beautifully with cleome, asters and zinnias.
25-35 Seeds per package.