Rhododendron oreotrephes

Alpine Rhododendron

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A compact evergreen shrub native to the alpine regions of the Himalayas and China. Features dense blue-green foliage with purple flowers in spring, adapted to cool climates.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
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Plant Details

Common Name Alpine Rhododendron
Family Ericaceae
Genus Rhododendron
Species Oreotrephes
Origin Himalayas / China
Blooming Vibrant purple flowers in late spring
Leaf Color Dark blue-green
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Acidic ericaceous mix with high peat content and perlite for drainage, pH 5.0-6.0

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Watering

Keep soil consistently moist but never waterlogged; use rainwater or soft water to avoid lime buildup

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Sunlight & Care

Bright indirect light or dappled sun; protect from harsh midday heat indoors to prevent scorching

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Fertilization

Apply specialized acid-forming fertilizer in early spring and late summer, diluted strength

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Pruning

Minimal pruning required after flowering to maintain shape; remove dead wood immediately

Pest Control Aphid Rhododendron Lace Bug Scale Insect

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 2 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
41° – 82°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 75%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
3000 – 12000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
800 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
30% – 65%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1200
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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