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Rhododendron watsonii

Rhododendron watsonii
Photo: Daderot, CC0

Rhododendron watsonii is an evergreen shrub or small tree from high mountains in western China, growing 1.5 to 6 m tall with white flowers. It is grown mainly as a garden plant in cool climates and needs acidic, well-drained soil and some shelter.

Family
Ericaceae (Heather family)
Grows as
Tree, Shrub
Light
Part shade
Water
Keep soil evenly moist, never waterlogged or bone dry, and water with rainwater where possible.
Soil
Acidic, humus-rich, well-drained soil (pH about 4.5 to 6).
Temperature
5 to 20 °C; hardy to about -15 °C; protect from hot, dry wind and late frosts.
How easy
Moderate
Safety
Toxic: All parts, especially leaves and nectar, contain grayanotoxins that can cause nausea, vomiting, weakness and low blood pressure.. Toxic to cats and dogs (ASPCA).
Native range
China (W. Sichuan, S. Gansu)
Climate
temperate

About

Rhododendron watsonii (无柄杜鹃) is a species of flowering plant in the family Ericaceae. It is native to southern Gansu and western Sichuan in China, where it grows at altitudes of 2,500–3,000 m (8,200–9,800 ft). It is an evergreen shrub or small tree growing to 1.5–6 m (4.9–19.7 ft) in height, with leathery leaves that are oblong-elliptic to broadly oblanceolate or obovate, 10–33 by 4–10 cm in size. The flowers are white.

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 watsonii 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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