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Weyrich’s Azalea

Rhododendron weyrichii

Weyrich’s Azalea
Photo: 笹谷康之, CC BY-SA 4.0

Weyrich's Azalea is a deciduous, tree-like shrub from South Korea and Japan, reaching 1 to 5 m, valued for its flowers and as the official flower of Jeju Province. It grows best as a garden shrub in cool, mild climates with acidic, well-drained soil.

Family
Ericaceae (Heather family)
Grows as
Tree, Shrub
Light
Part shade, Full sun
Water
Keep soil consistently moist but never waterlogged, and water during dry spells.
Soil
Acidic, humus-rich, well-drained soil
Temperature
5–25 °C; hardy to about -15 °C, protect young plants from harsh winds and late frosts
How easy
Moderate
Safety
Toxic: All parts, including leaves, nectar and flowers, contain grayanotoxins that can cause vomiting, drooling, abdominal pain and low blood pressure if eaten.. Toxic to cats and dogs (ASPCA).
Native range
S. Korea, SC. & S. Japan
Climate
temperate

About

Rhododendron weyrichii is a species of flowering plant in the family Ericaceae. It is native to Jeju Island, Korea, and south-central and southern Japan. A tree-like deciduous shrub reaching 3 to 15 ft (1 to 5 m), it is typically found at elevations from 20 m (70 ft) to 1,200 m (3,900 ft). It is the official flower of Jeju Province.

Other Rhododendron plants

Rhododendron aberconwayi · Sagan Dalya · Rhododendron adenogynum · Rhododendron adenosum · Rhododendron aganniphum · Cascade azalea · Rhododendron albrechtii · Rhododendron album · Rhododendron alutaceum · Rhododendron annae · Rhododendron anthopogon · Rhododendron araiophyllum

Text excerpted from the Wikipedia article Rhododendron weyrichii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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