200 Sweet William Carnation Seeds for Planting | Dianthus barbatus | Purple & White Blooms

Sweet William (Dianthus barbatus) is a classic biennial or short-lived perennial known for its clusters of fragrant, fringed flowers in shades of purple and white. These easy-to-grow plants are a favorite for cottage gardens, borders, and cutting gardens, attracting pollinators with their nectar-rich blooms. The flowers appear in late spring to early summer, creating a charming display when planted en masse or mixed with other perennials.

Sweet William is versatile and can be grown as an annual in colder climates or as a biennial/perennial in milder regions. The plants form neat clumps of green foliage and produce sturdy stems topped with dense flower heads. Whether you're a beginner or an experienced gardener, these seeds offer a rewarding gardening experience.

Plant Features

• Fragrant, fringed flowers in purple and white
• Attracts butterflies and bees
• Excellent for cut flower arrangements
• Low-maintenance and easy to grow
• Blooms in late spring to early summer

Growing Information

• Botanical Name: Dianthus barbatus
• Plant Type: Biennial/Perennial (often grown as annual)
• Sunlight: Full sun to partial shade
• Soil: Well-drained, fertile soil
• Water Requirements: Moderate; keep soil evenly moist
• Growth Habit: Upright, clump-forming
• USDA Hardiness Zones: 3-9
• Bloom Season: Late spring to early summer
• Mature Height: 12-24 inches
• Spacing: 9-12 inches apart

Planting & Care

Sow Sweet William seeds indoors 6-8 weeks before the last frost or directly outdoors in early spring after the danger of frost has passed. Press seeds lightly into the soil surface; they need light to germinate. Keep the soil moist but not waterlogged. Germination typically occurs in 7-14 days at temperatures around 65-70°F (18-21°C). Once seedlings have two sets of true leaves, thin or transplant them to their final spacing. For best results, plant in well-drained soil enriched with compost. Water regularly during dry spells, and deadhead spent flowers to encourage continued blooming. In colder zones, apply a light mulch in winter to protect plants.

What's Included

200 Sweet William Carnation seeds (Dianthus barbatus) for garden planting.