Impatiens balsamina: Rose Balsam with Cup-Shaped Flowers and Explosive Seed Pods

Impatiens balsamina (rose balsam) has a sparsely branched form with narrow lance-shaped pale green leaves. Cup-shaped hooded flowers 1–2 inches across, singly or in clusters, followed by explosive seed capsules. Colors include rose, lilac, creamy yellow.

Care

Best in partial shade and moist, well-draining loam. Add composted organic matter for optimal performance. Shelter from wind. Free-flowering and grows well in shade.

Propagation

Sow seed in early spring.

Problems

Spider mites, flower thrips, root knot nematode, whiteflies, aphids (especially under glass). Caterpillars outdoors. Gray mold, impatiens necrotic spot virus, fungal leaf spots, Rhizoctonia stem rot, Pseudomonas leaf spot, Verticillium wilt.

Overview

• Height: 1–3 ft.
• Spread: 1–3 ft.
• Light: Full Sun to Part Shade
• Moisture: Medium Moisture
• Characteristics: Self Seeds, Showy Flowers
• Bloom Time: Fall, Spring, Summer
• Flower Color: Pink, Purple, Red, White
• Uses: Beds and Borders, Container, Indoor Plant
• Seasonal Interest: Summer Interest
• Type: Annuals