Cosmos sulphureus Luxuriant flame-red free-flowering double blossoms wane to bright orange with yellow centers on wiry 18" stems that float above the deeply lobed dark green foliage. Ideal for cutflower production. 4' tall plants span almost 4½' wide. Planted alongside zinnias, sunflowers and amaranth, they were spellbinding in my 2015 flower bed. Tango dodged a light September frost and continued its dance well into October, but C. sulphureus is sensitive to frost, unlike C. bipinnatus. Annual. ②
5039 Tango 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.