Botanical Name

Rhododendron calendulaceum

Commonly known as Flame Azalea

Rhododendron calendulaceum (Flame Azalea)
Shrub

Outrageous blooms in hot orange, red, and yellow on a deciduous native azalea that stops people in their tracks.

Quick Reference
Bloom Season
May to Jun
USDA Zones
5-8
Sun
Part Sun or Part Shade
Water
Moderate - regular watering
Mature Height
6-12'
Bloom Colors
OrangeRedYellow
Native Species Pollinator Friendly Deer Resistant
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About This Name

Rhododendron calendulaceum is the scientific name used by botanists, nurseries, and seed catalogs to identify Flame Azalea unambiguously. The genus Rhododendron places it within a specific plant family, and using the botanical name avoids the confusion that comes with regional common names. If you're shopping for Flame Azalea, looking up plant care details, or comparing varieties, searching by Rhododendron calendulaceum will give you the most precise results.