Rhododendron kaempferi

Pincushion Azalea

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A deciduous shrub prized for vibrant spring blooms and dark green foliage turning crimson in autumn. Thrives in acidic soil and partial shade, native to Japan.
yard Outdoor plants wb_sunny Shade / Half-shade pets Not pet-safe
info

Plant Details

Common Name Pincushion Azalea
Family Ericaceae
Genus Rhododendron
Species Kaempferi
Origin Japan
Blooming Spring, vibrant white to pink flowers
Leaf Color Dark green turning red in autumn
Sunlight Shade / Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Acidic ericaceous mix with high organic matter, ensure excellent drainage to prevent root rot

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Watering

Keep soil consistently moist but not waterlogged, use rainwater or acidic water if possible

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Sunlight & Care

Partial shade preferred, avoid harsh midday sun which scorches leaves and flowers

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Fertilization

Apply specialized azalea fertilizer in early spring after flowering, do not overfeed

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Pruning

Prune immediately after flowering to maintain shape and remove dead wood

Pest Control Aphid Scale Insect 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
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Growing Parameters

thermostat
Temperature
23° – 77°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 80%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
600 – 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% – 70%
% 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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