UK Flowers: Herbs, Shrubs, Vines & Trees
UK Flowers

UK Flame Azalea2

Shrub Icon Cultivated Flower     Toxic
Image of Flame Azalea
Rhododendron calendulaceum
Family: Ericaceae

Flower Properties

Property Value
English Name Flame Azalea
Scientific Name Rhododendron calendulaceum
MainColor Yellow
PlantType Shrub Icon Shrub
Distribution Cultivated Flower Cultivated
Season Found May (May - Jun)
ImageUrl Rhododendron-001
Photographer DP
Location Found Abbotsbury
Country Found UK
Last Updated 04 September 2026
Photo Quality B

Flower Details

Description

Flame Azalea is a deciduous shrub known for its vibrant, flame-coloured flowers that range from yellow to red-orange. It typically grows to a height of 1.5 to 4.5 metres and blooms in late spring to early summer. The leaves are elliptic and alternate, providing a lush green backdrop to the striking flowers.

Distribution

This species is native to the Appalachian Mountains in the eastern United States, particularly found in open woodlands and along forest edges from southern Pennsylvania to northern Georgia.

Medicinal/Other Uses

— No significant medicinal uses.

Edibility

Inedible - all parts of the plant are considered toxic if ingested.

Human Toxicity Toxic
Toxic Highly_Toxic

Highly Toxic - ingestion can cause nausea, vomiting, and severe cardiovascular issues. Even small amounts can lead to serious health effects.

Pet Toxicity Pet Toxicity

Highly Toxic to dogs and cats - ingestion can result in vomiting, diarrhoea, and potentially fatal heart problems.

Active Compounds

Grayanotoxins, andromedotoxin, rhodotoxin.

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