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Rhododendron orbiculare

Rhododendron orbiculare
Photo: Jean-Pol GRANDMONT, CC BY 3.0

Rhododendron orbiculare is a compact evergreen shrub from forests in southwest China, reaching about 3 m with round leaves and deep pink spring flowers. The key to growing it is 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, watering with rainwater where possible and never letting it dry out or sit waterlogged.
Soil
Acid, free-draining soil enriched with leaf mould.
Temperature
Hardy to -15 °C; protect from cold winds and late frosts.
How easy
Moderate
Safety
Toxic: All parts of rhododendrons contain grayanotoxins, which can cause nausea, vomiting, weakness and low blood pressure if eaten.. Toxic to cats and dogs (ASPCA).
Native range
China (SW. Sichuan)
Climate
temperate

About

Rhododendron orbiculare, the round-leaved rhododendron (Chinese: 团叶杜鹃; pinyin: tuányè dùjuān), is a species of flowering plant in the heath family Ericaceae that is native to forests and slopes at an elevation of 1,400–3,500 m (4,600–11,500 ft) in northeastern Guangxi and southwestern Sichuan, China. It is a compact evergreen shrub growing to 3 m (9.8 ft) tall and broad, with matt-textured round leaves and trusses of deep pink flowers in spring.

In cultivation in the UK Rhododendron orbiculare has gained the Royal Horticultural Society's Award of Garden Merit. It is hardy down to −15 °C (5 °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 orbiculare 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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