Rhododendron keiskei

Keiske's Rhododendron

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Compact evergreen shrub native to Japan, featuring small oval leaves and vibrant spring flowers. Prefers acidic soil and cool climates.
yard Outdoor plants wb_sunny Half-shade pets Not pet-safe
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Plant Details

Common Name Keiske's Rhododendron
Family Ericaceae
Genus Rhododendron
Species Keiskei
Origin Japan
Blooming Spring flowering shrub with purple-pink tubular flowers
Leaf Color Dark green, bronze in winter
Sunlight Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Acidic ericaceous mix, peat-based with pine bark for drainage and aeration

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Watering

Keep consistently moist using rainwater or distilled water to avoid lime burn. Do not let soil dry out completely.

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Sunlight & Care

Partial shade in summer, bright indirect light indoors. Avoid direct midday sun to prevent leaf scorch.

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Fertilization

Apply acid-loving plant fertilizer monthly during growing season (spring/summer). Reduce in winter.

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Pruning

Prune lightly after flowering to maintain shape. Remove dead wood and spent blooms immediately.

Pest Control Aphid Mealybug Spider Mite

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° – 75°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
50% – 80%
% 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)
500 – 2000
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
30% – 70%
% volumetric
Water content in the growing medium
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Soil EC
400 – 1200
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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