Candyfloss Red Cosmos is an heirloom annual that brings bold, oversize blooms to any garden. Its magenta petals with bright yellow centers grow on compact 2-foot plants that produce flowers reaching 4 to 5 inches across, far larger than typical cosmos varieties. Reaching maturity in 60 to 90 days, this variety thrives in full sun and adapts equally well to containers, landscape beds, or cutting gardens. The nickname says it all: these blooms feel extravagant and joyful, like confection made botanical.
Full Sun
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2-11
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Moderate
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Candyfloss Red produces blooms that truly arrest attention. The oversized flowers, measuring 4 to 5 inches across, dwarf what you might expect from a compact 2-foot plant, creating an almost lavish abundance of color from midsummer through frost. The magenta petals paired with a vibrant yellow eye create a striking color contrast that reads beautifully both in garden beds and in cut arrangements. This heirloom variety's combination of restrained plant size with exuberant flower production makes it exceptionally useful for gardeners working with limited space.
Candyfloss Red cosmos excel as cut flowers, where their 4 to 5-inch blooms and long stems create substantial arrangements that need surprisingly few stems to make visual impact. In the garden, the compact habit combined with abundant flowering makes them excellent for container planting, landscape borders, and mixed beds where you want reliable color without overwhelming neighboring plants. Their extended bloom period from summer through frost also makes them valuable as late-season color sources when many annuals begin to fade.
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Start seeds indoors 6 to 8 weeks before your last spring frost. Maintain soil temperature at 60 degrees Fahrenheit for germination, which typically occurs in 7 to 14 days. Sow seeds at a depth of 1/8 to 1/4 inch and keep soil consistently moist but not waterlogged during germination.
Harden off seedlings gradually over 7 to 10 days by exposing them to increasing periods of outdoor conditions. Transplant after all danger of frost has passed and nighttime temperatures consistently reach 60 degrees Fahrenheit or higher. Space plants 10 inches apart in prepared garden beds or containers.
Direct sow seeds outdoors after the last spring frost once soil has warmed to 60 degrees Fahrenheit. Scatter seeds and press lightly into soil at a depth of 1/8 to 1/4 inch. Keep soil moist until seedlings emerge in 7 to 14 days, then thin to 10-inch spacing.
Cut flowers for arrangements in early morning or late evening when stems are most hydrated. Harvest when blooms are fully open but petals are still firm; flowers will continue opening slightly after cutting. Remove any leaves that would sit below the waterline in your vase to extend vase life.
Deadhead spent flowers regularly throughout the growing season to encourage continuous blooming and maintain the plant's compact appearance. Pinching back young plants when they reach 6 inches tall promotes branching and a fuller, bushier form that will produce more flowers overall.
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“Candyfloss Red represents the cosmos breeding tradition that prized ever-larger blooms on ever-more-manageable plants. As an heirloom variety, it carries the genetic legacy of cosmoses selected and replanted by generations of gardeners who valued both the visual drama of big flowers and the practicality of plants that don't sprawl. The cultivar name itself suggests the whimsical appeal that drew seed savers to preserve and share this type: blooms so voluminous and colorful they evoke carnival cotton candy transformed into flowers.”