Botanical Name: Dianthus barbatus
Native: Europe, Asia
Hardiness: Biennial or short-lived perennial in USDA zones 3–9. Foliage first year, flowers second year.
Plant Dimensions: 12"–20" tall and wide
Variety Information: ½" white, pink, rose, red, purplish, bi-colored flowers in densely packet flattened heads (3"–5" diameter).
Exposure: Full sun to part shade
Bloom Period: Spring to early summer
Attributes: Cut Flower, Deer Resistant
When to Sow Outside: 1 to 2 weeks after your average last frost date. Sow up until early summer for bloom the following year. Optimal soil temperature for germination is 68°–72°F.
When to Start Inside: 8 to 10 weeks before your average last frost date.
Days to Emerge: 5–10 days
Seed Depth: ¼"
Seed Spacing: A group of 3 seeds every 12"
Thinning: When ½" tall, thin to 1 every 12"
Double Blend Sweet William Seeds Reviews