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Rhododendron calostrotum

Rhododendron calostrotum
Photo: Ghislain118 https://www.fleurs-des-montagnes.net, CC BY-SA 3.0

Rhododendron calostrotum is a low, spreading alpine shrub from the mountains of Tibet, south-central China and Myanmar, valued for its small, purple-pink flowers. It grows best in cool, moist, acidic, well-drained soil in a sheltered, partly shaded spot.

Family
Ericaceae (Heather family)
Grows as
Shrub
Light
Part shade
Water
Keep the soil evenly moist and never waterlogged; water during dry spells.
Soil
Acidic, humus-rich, free-draining soil or ericaceous potting mix.
Temperature
5-20 °C; hardy to about -15 °C, protect from hot, dry wind.
How easy
Moderate
Safety
Toxic: All parts contain grayanotoxins, which can cause vomiting, low blood pressure and other symptoms if eaten, as with other rhododendrons.. Toxic to cats and dogs (ASPCA).
Native range
Tibet to China (Yunnan) and N. Myanmar
Climate
temperate

About

Rhododendron calostrotum is a species of flowering plant in the genus Rhododendron native to Tibet, south-central China, and Myanmar. Its putative subspecies Rhododendron calostrotum subsp. keleticum, called the beautiful-covering rhododendron, and its cultivar 'Gigha' have both gained the Royal Horticultural Society's Award of Garden Merit.

Other Rhododendron plants

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

Text excerpted from the Wikipedia article Rhododendron calostrotum 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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