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Rhododendron japonicum Care Guide
Care guide for Rhododendron japonicum: light, watering, humidity, soil and temperature, based on the species' botanical profile.
📷 Erskine College Herbarium (ERSK-) · CC BY 4.0 · GBIF/iNaturalist
⚠️ Rhododendron japonicum 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.
HumidityModerate to high humidity (40-70%).
TemperatureTemperate: 12-24 °C (54-75 °F).
SoilWell-draining mix, slightly acidic to neutral pH (4.5-6.0).
Growthmoderate growth. Mature height ~2.4 m (8.0 ft).
Origin
Native to: Japan.
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