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Key characteristics

Family: Ericaceae
Height: 1 to 2 ft
Width: 1 to 3 ft
Flower color: Purple to violet-purple blooms
Foliage color: Small evergreen gray-green to blue-green leathery leaves
Bloom time: Mid to late spring
Light: Full sun to part shade
Water: Moderate
Maintenance: Low; requires minimal pruning beyond removing spent blooms and shaping
Growing zone: USDA zones 4 to 8
Wildlife: Flowers attract bees and other pollinators; evergreen foliage provides shelter for birds

Shrubs

Rhododendron impeditum

Dwarf Purple Rhododendron

Rhododendron impeditum is a dwarf evergreen rhododendron valued for its tight, cushiony habit and tiny, slightly aromatic leaves that read gray-green in many garden settings. In mid to late spring (often April-May), it produces small trusses of widely funnel-shaped flowers in bluish purple to violet tones that can cover the plant, making it a favorite for rock gardens, edging, and containers.

Native to high elevations in southwestern Sichuan and northwestern Yunnan, China, this species entered horticulture in the early 1900s.

Light

Full sun to part shade

Water

Moderate

Bloom time

Mid to late spring

Find this plant

Works well in

Sun Gardens
Borders
Containers
Rock Gardens

Companion plants

Salvias · Bottlebrush · Blazing star · Maiden grass · Candytuft · Daisy bush

Design tip

Allow Rhododendron impeditum to spill gently around rocks or along a path edge, where its low cushiony form can soften hard lines. Repeating several plants at intervals carries the violet spring color through the garden while preserving its naturally compact character.