Rhododendron keleticum

Keleti Rhododendron

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Hardy alpine evergreen shrub from the Caucasus Mountains, featuring large purple-blue flowers in late spring and leathery dark green foliage.
yard Outdoor plants wb_sunny Half-shade pets Not pet-safe
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Plant Details

Common Name Keleti Rhododendron
Family Ericaceae
Genus Rhododendron
Species Keleticum
Origin Caucasus Mountains
Blooming Showy spring flowers; foliage plant otherwise
Leaf Color Dark green
Sunlight Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Acidic peat-based mix with perlite and pine bark; pH 4.5-6.0 required.

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Watering

Keep soil consistently moist but well-drained; use rainwater or soft water to maintain acidity.

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Sunlight & Care

Partial shade to full sun depending on climate; avoid scorching afternoon rays in summer.

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Fertilization

Apply specialized ericaceous feed in early spring before flowering, avoid chlorinated fertilizers.

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Pruning

Prune lightly after flowering to maintain shape, remove dead wood in late winter.

Pest Control Aphid Rhododendron Lace Bug Root Rot Nematode 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 1 month
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
5° – 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 – 15000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
400 – 1200
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
35% – 65%
% volumetric
Water content in the growing medium
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Soil EC
200 – 800
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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