Black Adder Sweet William Seeds

Availability: In Stock

Dark maroon flowers against purple-tinged leaves will draw you in to touch and admire. 'Black Adder' is a quick to bloom variety, blooming its first year when sown indoors. Low maintenance and beautiful in rock gardens and containers, too! In the kitchen, enjoy the edible flowers in desserts, salads, and sauces. Resow every year so you'll be sure to always have flowering plants.

$1.99 250 mg

Botanical Name: Dianthus barbatus

Family: Caryophyllaceae

Native: Europe, Asia

Hardiness: Biennial or short-lived perennial in USDA zones 3–9.

Plant Dimensions: 16"–20" tall, 12" wide

Variety Information: ½" dark maroon flowers in densely packed, flattened clusters (3"–5" diameter)

Exposure: Full sun to part shade

Bloom Period: Spring to early summer

Attributes: Attracts Pollinators, Deer Resistant, Good for Containers

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"

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Black Adder Sweet William Seeds Reviews

1 review
Gorgeous color
Review star icon Review star icon Review star icon Review star icon Review star icon Jul 12, 2020
I had Sweet William blooming everywhere and this color was so rich and beautiful, in contrast to all the other colors - pinks, white, red, multicolored - I've saved seeds and hope I can keep them blooming every year. I can't think of another flower that puts on such a profuse display - there were large clusters everywhere.
Kristin Thompson

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