Silver Aster is a stunning bicolor annual flower that brings the full, ruffled elegance of peonies and mums to any garden without the fuss. Each plant produces up to 12 stems crowned with 2 to 3 inch blooms in a striking combination of snowy white petals that deepen into lavender purple. Growing a tidy 3 feet tall, it reaches maturity in 110 to 120 days and thrives in full sun across hardiness zones 2 through 11. The real charm lies in its productivity and longevity once cut, making it an exceptional choice for cut flower arrangements that last.
Full Sun
Moderate
2-11
36in H x ?in W
—
High
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Silver Aster delivers multiple stems per plant, each topped with large bicolor blooms that combine pristine white with soft lavender tones. Unlike peonies or mums that demand special care, this annual grows easily from seed and produces flowers excellent for cutting. The abundance of blooms on a single plant and their staying power in a vase make this variety feel generous and rewarding to grow.
Silver Aster excels as a cut flower, with stems sturdy enough to hold their shape in arrangements and blooms that remain fresh long after harvest. The multiple stems per plant and generous flower production make it equally valuable in garden beds where its bicolor flowers provide visual interest throughout the flowering season.
No timeline data available yet for this variety.
Sow seeds indoors 6 to 8 weeks before the last spring frost at a soil temperature of 70 to 80 degrees Fahrenheit. Keep soil moist and provide bright light once seedlings emerge.
Harden off seedlings over 7 to 10 days before moving outdoors. Transplant after the last frost date when soil has warmed, spacing plants 12 to 18 inches apart to allow room for multiple stem development.
Direct sow seeds outdoors after the last frost date and soil has warmed to at least 60 degrees Fahrenheit.
Cut stems when flowers are fully open but still crisp, ideally in early morning. Cut at the base of the stem just above a set of leaves to encourage additional branching and new flowers from the remaining plant.
Pinch or remove the central stem when plants are 6 to 8 inches tall to encourage branching and the development of multiple flowering stems. Deadhead spent blooms regularly to extend the flowering season and promote continued stem production.
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