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Sweet William (B)

Veseys Home » Growing Flowers from Seed »  Sweet William (B)

Dianthus barbatus

Biennial. Hardy in zones 3-9.

Start inside 6-8 weeks before last frost. Cover with 1/8 inch of potting mix and keep at room temperature, 18-21°C (65-70°F). Should germinate within 10 days. May also be direct seeded into the garden anytime between April and July for blooms the following year. Transplant after last spring frost into a full sun to part shade location, 9-12 inches apart. Prefers rich, well-drained soil. Water regularly and fertilize once or twice a season. Shear back after blooming and mulch for winter. Will self-seed.