Sweet Rose Magic Sweet William is a captivating cultivar of Dianthus barbatus that brings romantic charm to gardens across USDA zones 3 through 9. Rising 18 to 36 inches tall with a compact spread of 10 to 12 inches, this frost-hardy perennial thrives in full sun to partial shade and adapts well to moderate watering. Named for its elegant rose-like blooms, this variety rewards early-season sowing with stunning floral displays that feel far more sophisticated than its common name suggests.
Partial Sun
Moderate
3-9
36in H x 12in W
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Moderate
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This Sweet William cultivar earns its 'Magic' name through blooms with a distinctly rose-like appearance and romantic appeal. It germinates reliably between 68 and 72 degrees Fahrenheit, making it accessible to first-time seed growers, and performs beautifully whether you sow seeds directly outdoors after the last frost or start them indoors for earlier flowering. The plant's hardy nature across a wide temperature range combined with its moderate water needs makes it resilient without demanding constant attention.
As a flowering plant, Sweet Rose Magic Sweet William serves as a vibrant addition to cutting gardens, border plantings, and ornamental displays. The blooms hold well in arrangements and bring a cottage garden aesthetic to any landscape.
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Start seeds indoors 8 to 10 weeks before your average last frost date. Maintain a soil temperature of 68 to 72 degrees Fahrenheit for optimal germination. Sow seeds at a depth of 1/4 inch.
Transplant seedlings outdoors after they reach 1/2 inch tall, spacing them approximately 12 inches apart. Harden off seedlings gradually before moving them to their permanent garden location.
Sow seeds directly outdoors 1 to 2 weeks after your average last frost date. Continue sowing through early summer to ensure blooms the following year. Sow seeds at a depth of 1/4 inch.
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