Berberis x Gladwynensis William Penn

William Penn Barberry

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Deciduous thorny shrub with striking purple-red foliage that matures to green. Ideal for hedges, borders, or container growing in temperate climates.
yard Outdoor plants wb_sunny Half-shade pets Not pet-safe
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Plant Details

Common Name William Penn Barberry
Family Berberidaceae
Genus Berberis
Species X Gladwynensis
Variety William Penn
Origin UK (Hybrid)
Blooming Small yellow flowers in late spring, followed by red berries
Leaf Color Purple-red to dark green
Sunlight Half-shade
Category Outdoor plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Well-drained, fertile loam or sandy soil; tolerates various pH levels including alkaline

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Watering

Water regularly during establishment; drought tolerant once mature. Avoid waterlogging.

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Sunlight & Care

Prefers full sun for best leaf coloration; tolerates partial shade but may lose red hue

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Fertilization

Apply balanced slow-release fertilizer in early spring before new growth emerges

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Pruning

Prune after flowering to maintain shape; remove dead wood in late winter

Pest Control Aphid Scale Insect Thrip

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 10 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
5° – 95°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
20% – 70%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
1000 – 40000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
100 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
20% – 60%
% volumetric
Water content in the growing medium
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Soil EC
300 – 1800
mS/cm
Electrical conductivity (nutrient concentration in soil water)

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