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Rhododendron racemosum

Rhododendron racemosum
Photo: Stan Shebs, CC BY-SA 3.0

Rhododendron racemosum is an upright evergreen shrub from the mountains of southwest China, valued for masses of pale to deep pink spring flowers. It grows best in a sheltered spot in dappled shade with acid, humus-rich soil.

Family
Ericaceae (Heather family)
Grows as
Shrub
Light
Part shade
Water
Keep the soil evenly moist, especially in dry spells, and use rainwater or soft water where possible.
Soil
Acid, well-drained soil enriched with leaf mould or ericaceous compost.
Temperature
Hardy to about -20 °C; protect from cold, drying winds and late frosts.
How easy
Moderate
Safety
Toxic: All parts of rhododendrons contain grayanotoxins, which can cause vomiting, drooling, weakness and in severe cases heart problems if eaten.. Toxic to cats and dogs (ASPCA).
Native range
China (SW. Sichuan, Yunnan, NW. Guizhou)
Climate
temperate

About

Rhododendron racemosum, the racemose rhododendron (Chinese: 腋花杜鹃; pinyin: yèhuā dùjuān), is a species of flowering plant in the heath family Ericaceae, native to forest and grassland at 1,500–3,500 m (4,900–11,500 ft) in northwestern Guizhou, southwestern Sichuan, and Yunnan, China.

How to grow it

In cultivation in the UK Rhododendron racemosum and the cultivar 'Rock Rose' have gained the Royal Horticultural Society's Award of Garden Merit. It is hardy down to −20 °C (−4 °F) but like most rhododendrons it requires a sheltered spot in dappled shade, and an acid soil enriched with leaf mould.

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 racemosum 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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