Cosmos bipinnatus (85-90 days) These large-flowered cosmos, in pinks, roses, magentas and occasional whites, need little tending. So named because its early maturity created a sensation when it first came out in 1930. Won AAS 6 years later. Withstands the first mild frosts of fall. 4–5'. One of our most popular flowers. Annual. ~140-195 seeds/g. ②
5035 Sensation Mix Cosmos
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Annual. Sun-loving, free-flowering all summer, can serve as an accent, screen or cutflower. Colorful daisy-style flowers with yellow centers bloom amidst lacy cut foliage. Attracts a broad range of beneficial insects.
Culture: For best results, thin its fast-growing large plants. Deadhead for persistent blooms. Harvest cutflowers when petals on first flower are just opening. Don’t wait too long! Old blooms don’t last. Vase life is 4–6 days. Light aids germination. May be started indoors at 70–75° (grow on at 60–65°) or direct seeded after last frost. Space 9–12". Tolerant of drought. ~125-150 seeds/g.
All flowers are open-pollinated except where noted.
Days in parentheses after a variety indicate days to first bloom.
For the latest results of our germination tests, please see the germination page.