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Torch Azalea

Rhododendron kaempferi

Torch Azalea
Photo: Plant Image Library, CC BY-SA 2.0

Torch azalea is a semi-evergreen deciduous-leaning shrub native to Japan, grown for its showy orange to red spring flowers. It does best in cool, humid conditions with acidic, well-drained soil and dappled light.

Family
Ericaceae (Heather family)
Grows as
Shrub
Light
Part shade
Water
Keep soil evenly moist and never let it dry out, using rainwater or low-lime water where possible.
Soil
Acidic, humus-rich, well-drained soil or ericaceous potting mix.
Temperature
Hardy to about -20 °C; protect young plants from hot, dry wind and late frosts.
How easy
Moderate
Safety
Toxic: All parts, including leaves, nectar and honey made from the flowers, contain grayanotoxins that can cause vomiting, drooling, low blood pressure and heart rhythm problems.. Toxic to cats and dogs (ASPCA).
Native range
Japan
Climate
temperate

About

Rhododendron kaempferi, the torch azalea or Kaempferi azalea, is a species of flowering plant in the family Ericaceae. It is native to Japan. A semi-evergreen shrub, its 'Orange King' cultivar has gained the Royal Horticultural Society's Award of Garden Merit. There are a number of other cultivars available with a variety of flower colors.

Other Rhododendron plants

Rhododendron album · Rhododendron anthopogon · Rhododendron argyrophyllum · Rhododendron augustinii · Rhododendron bureavii · Rhododendron calophytum · Rhododendron calostrotum · Bell Flowered Rhododendron · Bent-style rhododendron · Rhodora · Catawba rosebay · Georgian Snow Rose

Text excerpted from the Wikipedia article Rhododendron kaempferi 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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