Cleome loves the warm days of summer. It reaches 3-6 feet tall and blooms continuously from midsummer to frost. Perfect for a tall summer hedge in sun or partial shade. Burgundy-purple flowers are spiky, open and form round clumps.

Planting & Harvesting

Seed Depth: 1/4″ (6mm)

Spacing: 1″ (3cm)

Sprouts In: 7-10 days

Thinning: 2′ (61cm)

Choose a warm, sunny location. For transplants, start seeds indoors two weeks before last frost date. Keep soil evenly moist until plants are established. Harden off seedlings by setting tray outdoors during the day, bringing in at night. Transplant outdoors after nights have warmed. May be sown directly outdoors after last frost.

Mature plants are quite drought tolerant. Rarely needs fertilizer.

Additional Information

Botanical Name: Cleome hasselriana

Height: 3-6′ (1-2m)

Bloom Period: summer

Type: annual