Rhododendron austrinum

Golden Azalea

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Deciduous shrub with vibrant golden-yellow trumpet flowers. Native to southeastern US, thrives in acidic soil with glossy dark green foliage and moderate care.
yard Outdoor plants wb_sunny Half-shade / Sun pets Not pet-safe
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Plant Details

Common Name Golden Azalea
Family Ericaceae
Genus Rhododendron
Species Austrinum
Origin Southeastern United States
Blooming Spring, golden-yellow flowers
Leaf Color Dark glossy green
Sunlight Half-shade / Sun
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Acidic peat-based mix with high organic matter and excellent drainage.

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Watering

Keep soil consistently moist but not waterlogged. Mulch to retain moisture. Reduce watering in winter dormancy.

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Sunlight & Care

Full sun to partial shade. Protect from harsh afternoon heat in hot climates.

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Fertilization

Use specialized azalea/camellia acidic fertilizer in early spring and fall.

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Pruning

Prune immediately after flowering to maintain shape, remove dead wood.

Pest Control Aphid Rhododendron Lace Bug 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 3 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 8 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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Growing Parameters

thermostat
Temperature
19° – 86°
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)
1000 – 25000
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
20% – 55%
% 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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