Cosmos Sea Shells Cosmos Bipinnatus is a flowering, herbaceous annual plant native to Mexico. Growing Cosmos Sea Shells from seeds is the easiest and cheapest way to establish this garden annual that is also commonly called Common Cosmos and Mexican Aster. Sea Shells Cosmos blooms with large, 3 inches in diameter, daisy-like flowers that have yellow centers and petals with a very unique color pattern which resembles sea shells. Growing on a tall stems with fern-like leaves, Cosmos Sea Shells flowers provide a very delicate pastel of pink, white, carmine, and rose colors. Cosmos blooms nonstop from summer to first frost attracting bees and butterflies.
Cosmos Sea Shells is a popular garden annual for cottage and cutting gardens, containers and pots. Because of their extraordinary showy appearance, Cosmos flowers look terrific in mass planting. Despite the established Cosmos plant is very drought and heat tolerant, Cosmos Bipinnatus seeds have to be kept moist until germination. Cosmos adapts easily to virtually any soil and makes a long-lasting cut flower.
Height: 24-36 Inches
Bloom Season: Summer/Fall
Environment: Sun/Partial Shade
Soil Type: Average/Poor/Dry/Medium well-drained, pH 6.1-7.4
USDA Zones: All Regions of North America
Sow Indoors: Spring (2-4 weeks before last frost)
Sow Outdoors: Spring/Summer (Zones 1-6) Fall (Zones 7-11)
Seed Depth: 1/16 Inch
Germination Time: 14-21 Days