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Rhododendron impeditum | Dwarf Purple Rhododendron

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DESCRIPTION
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. Its steady evergreen presence, compact branching, and reliable spring bloom make it easy to tuck into small spaces where close-up detail and early-season color matter.

DESCRIPTION
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. Its steady evergreen presence, compact branching, and reliable spring bloom make it easy to tuck into small spaces where close-up detail and early-season color matter.

 

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

    This plant can be seen at the Rhododendron Species Botanical Garden.

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