Flame Azalea
റോഡോഡെഡ്രോൺ കാലെൻഡുലേസിയം
Rhododendron calendulaceum (Michx.) Torr.
- light
- Any light
- water
- Medium
- tall
- 2.9 m
- wide
- 2.7 m
Ericaceae
Also called Flame azalea
Formerly Azalea aurantiaca, Azalea calendulacea, Azalea crocea, Azalea jammea
When it flowers
Not known yet in the tropics: too few flowering observations to read a season from.
Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- Shrub or treeKew's checklist, not yet checked
- Climate
- TemperateKew's checklist, not yet checked
- Wild in
- Ohio to SE. U.S.A.Kew's checklist, not yet checked
- Light
- Sun or shadeRead from NC State Extension, one source
- Height
- 1.2 m to 4.6 mRead from NC State Extension, one source
- Spread
- 2.4 m to 3.0 mRead from NC State Extension, one source
- Water
- Average: moist, well drainedRead from NC State Extension, one source
- Flowers
- Yellow, orange, red, pinkRead from NC State Extension, one source
- Coldest it survives
- -28.9 °C (USDA zone 5a)Read from NC State Extension, one source
Not known yet: heat, hottest it survives.
In other languages (9)
- Czech
- pěnišník měsíčkový
- Russian
- Рододендрон ноготковидный
- Swedish
- orangeazalea
- Estonian
- oranž rodo, oranž rododendron, oranž asalea
- French
- Azalée candulacée
- Finnish
- liekkiatsalea
- Polish
- Azalia nagietkowa
- Slovak
- rododendron nechtíkovitý
- Malayalam
- റോഡോഡെഡ്രോൺ കാലെൻഡുലേസിയം
Where this comes from
- iNaturalist, read 2026-10-25, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-26, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- NC State Extension, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 4.0
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC0
- iNaturalist, read 2026-10-25, CC0
- 3D model: Rhododendron calendulaceum (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.