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Rhododendron spinuliferum is an evergreen shrub from the mountains of southwest China, grown for its red tubular flowers from late winter into early summer. The key to growing it is acidic, humus-rich soil in dappled shade, as too much shade means few flowers.
Rhododendron spinuliferum is a species of flowering plant in the family Ericaceae, native to Yunnan and Sichuan, China.
In cultivation, Rhododendron spinuliferum grows best in acidic soils of pH 4–6 with a shady aspect and significant organic material in the soil, although excess shade will result in few flowers and leggy habit. Readily propagated by seed or cuttings, it flowers in four to five years from seed.
Hybrid cultivars derived from this species include:
The range is southwestern Sichuan and northeastern to western Yunnan at altitudes ranging from 1,900 to 2,500 m (6,200 to 8,200 ft), in coniferous forests with Keteleeria, or mixed conifer and deciduous forest with oak (Quercus), in shaded areas and thickets.
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 spinuliferum 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.
