Pink and White Sweet William Mix 100 Seeds

(Dianthus barbatus)
Classic cottage-garden favourite

Sweet William is a charming, old-fashioned biennial that produces dense clusters of richly coloured, lightly fragrant flowers in shades of pink, white and bicolours. Blooming in late spring to early summer, it’s a magnet for pollinators and a staple in cottage gardens, borders, and cutting gardens.

Compact yet showy, Sweet William adds colour and structure without overwhelming nearby plants. It’s also an excellent cut flower, lasting well in bouquets.

Plant Details

• Plant height: 30–60 cm (12–24 in)

• Spread: 20–30 cm (8–12 in)

• Lifecycle: Biennial (sometimes short-lived perennial)

• Bloom time: Late spring to early summer (second year)

• Sun: Full sun to partial shade

Growing from Seed

• Start seeds indoors 6–8 weeks before last frost, or direct sow outdoors in late spring or early summer

• Lightly press seeds into soil; do not cover deeply

• Germination: 7–14 days

• Transplant or thin seedlings once established

• Flowers typically appear the following year

Care Tips

• Prefers well-drained soil

• Moderate watering; avoid waterlogged conditions

• Deadhead to extend bloom time

• Cold hardy and excellent for Canadian gardens

Why Grow Sweet William?

• Beautiful, long-lasting blooms

• Pollinator-friendly

• Great cut flower

• Low maintenance and cold tolerant