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Great rhododendron (Rhododendron maximum) Care Guide
Care guide for Great rhododendron: light, watering, humidity, soil and temperature, based on the species' botanical profile.
📷 Stevie Steele · CC BY 4.0 · GBIF/iNaturalist
⚠️ Great rhododendron is toxic to pets — see the toxicity page.
Care at a glance
LightPlenty of light; some direct sun is tolerated.
WaterWater roughly every 10 days, let the top 2-3 cm of soil dry out between waterings. Tolerates the occasional missed watering.
HumidityModerate to high humidity (40-70%).
TemperatureTemperate: 12-24 °C (54-75 °F).
SoilWell-draining mix, slightly acidic to neutral pH (4.0-5.5).
Growthslow growth. Mature height ~7.6 m (25.0 ft).
Origin
Native to: Alabama, Connecticut, Delaware, Georgia, Kentucky, Maine.
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