Ericaceae
Cascade azalea
Rhododendron albiflorum
- Family
- Ericaceae
- Genus
- Rhododendron
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Common names
By language (6)
- Arabic
- جلسان أبيض
- Bulgarian
- Белоцветен рододендрон
- English
- Cascade azalea
- French
- Azalée blanche
- German
- Candidastrum
- Russian
- Рододендрон белоцветковый
Synonyms
- Azalea albiflora (Hook.) Hook.
- Azaleastrum albiflorum (Hook.) Rydb.
- Azaleastrum albiflorum subsp. warrenii (A.Nelson) W.A.Weber
- Azaleastrum warrenii A.Nelson
- Cladothamnus campanulatus Greene
- Rhododendron albiflorum var. albiflorum
- Rhododendron albiflorum var. warrenii (A.Nelson) M.A.Lane
- Rhododendron album (Pursh) Hoffmanns.
- Rhododendron warrenii (A.Nelson) J.F.Macbr.
Flowers
- Flower colour
- white (USDA PLANTS Database)
Characteristics
- Growth habit
- Shrub
- Lifespan
- Perennial
- In the US and Canada
- Canada: native, Lower 48 states: native
Toxicity: Severe, as listed by the USDA PLANTS Database (2025-05-29). USDA rates how toxic a plant is to people or livestock; it is not a pet-safety rating, so ask a vet or poison line if a pet or child ate it.
Plant problems
Notches in rhododendron leaves: causes and fixesNotches in rhododendron leaves usually mean root weevils. Learn how to spot them, remove adults, and check for root damage.
Rhododendron leaves curling in cold weatherRhododendron leaves often curl naturally in cold weather. Learn how to spot normal winter rolling, prevent drying, and recognize damage.
Photos
Photo: J Brew from near Seattle, USA, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Walter Siegmund, CC BY-SA 3.0, from Wikimedia Commons
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Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.