General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Soil pH Preferences: Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 8b
Plant Height: 6 to 15 feet
Plant Spread: 6 to 8 feet
Leaves: Good fall color
Deciduous
Other: Yellow to plum autumn shades.
Flowers: Showy
Flower Color: Red
Other: Red-orange
Bloom Size: 1"-2"
Flower Time: Summer
Late summer or early fall
Underground structures: Taproot
Uses: Windbreak or Hedge
Cut Flower
Wildlife Attractant: Bees
Butterflies
Hummingbirds
Resistances: Humidity tolerant
Toxicity: Other: All parts of plants are poisonous if ingested.
Propagation: Other methods: Cuttings: Tip
Layering
Other: Tissue Culture
Awards and Recognitions: Other: Rhododendron of the Year Award (American Rhododendron Society, Mid Atlantic Region 2011 and South East Region 2014.

Image
Common names
  • Plumleaf Azalea
  • Rhododendron

Photo Gallery
Location: Jenkins Arboretum in Berwyn, Pennsylvania
Date: 2019-07-14
flowers and foliage
Location: Jenkins Arboretum, Devon, Pennsylvania
Date: 2017-07-15
Blooming in mid-July!
Location: Jenkins Arboretum in Berwyn, Pennsylvania
Date: 2019-07-14
shrubs in bloom in woodland border
Location: Botanical Gardens of the State of Georgia...Athens, Ga
Date: 2017-07-11
Plumleaf Azalea - Rhododendron prunifolium 001

Courtesy Sunlight Gardens, used with permission
Location: Jenkins Arboretum, Devon, Pennsylvania
Date: 2017-07-15
Azalea blooming in mid-July!
Comments:
  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Jul 16, 2019 10:40 AM concerning plant:
    The Plumleaf Azalea is native to the southeastern USA. It is a rare plant and is considered endangered in the wild. It is noted as having an irregular, layered habit. Its deciduous leaves get to 6 inches long. It is one of the latest blooming native azaleas, which displays its flowers in July of vivid orange to red color, that get about 2 inches in diameter, and which are borne in clusters of 4 to 7. The flower buds for the next year develop before the currant season's flowers bloom. It is easy to propagate by seed or by cuttings. All parts of the shrub are somewhat poisonous to humans if eaten. I've just discovered this species, having been planted at Jenkins Arboretum in southeast Pennsylvania, noticing it by its vivid orange flowers in mid-July 2019.
Plant Events from our members
DeweyRooter On April 1, 2023 Obtained plant
Obtained plant at spring Botanic Garden sale.
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