Impatiens glandulifera (Himalayan balsam) — Bushy, compact

Overview

Impatiens glandulifera is a bushy, compact annual biennial in the genus Impatiens, part of the Balsaminaceae family, with fleshy, simple, toothed leaves foliage. Impatiens glandulifera grows best in full shade, and tolerates loam soils and neutral pH. Its UK hardiness is rated H3. Suggested uses include bedding plants, containers, hanging baskets and groundcover.

About

Impatiens glandulifera, Himalayan balsam, is a large annual plant native to the Himalayas. Via human introduction it is now present across much of the Northern Hemisphere and is considered an invasive species in many areas.

Growing conditions

Best soil and position for Impatiens

Sunlight: Full shade
Soil type: Loam
Soil pH: Neutral
Soil moisture: Moist but well-drained
Aspect: North-facing
Exposure: Sheltered
UK hardiness: H3

Plant details

Impatiens glandulifera size, habit and characteristics

Plant type: Annual Biennial, Bedding
Habit: Bushy, compact
Foliage: Fleshy, simple, toothed leaves
Suggested uses: Bedding plants, containers, hanging baskets, groundcover

Care notes

Pruning and caring for Impatiens glandulifera

Propagation: Seed sowing, stem cuttings
Pest resistance: Susceptible to downy mildew, aphids, whiteflies
Disease resistance: Downy mildew-resistant varieties available

Frequently asked questions

Where is the best place to plant Impatiens glandulifera?

Impatiens glandulifera prefers full shade. It suits sheltered positions.

What soil does Impatiens glandulifera need?

Impatiens glandulifera grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.

Is Impatiens glandulifera hardy in the UK?

Impatiens glandulifera has an RHS hardiness rating of H3, meaning it is half-hardy, tolerating -5 to 1°C, and may need winter protection in colder areas.

How do I propagate Impatiens glandulifera?

Seed sowing, stem cuttings.

More in the Impatiens genus

Browse all Impatiens →