Berberis, Barberry 'William Penn'

Berberisx gladwynensis

Family
Berberidaceae (bear-ber-id-AY-see-ee)
Genus
Berberis (BUR-bur-is)
Synonym
Sun Exposure
Sun to Partial Shade
Foliage
Grown for foliage
Evergreen
Height
18-24 in. (45-60 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
Danger
Plant has spines or sharp edges; use extreme caution when handling
Bloom Color
Bright Yellow
Bloom Time
Mid Spring
Other Details
Category
Shrubs
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Dark/Black
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Patent expired
Propagation Methods
From softwood cuttings
From hardwood heel cuttings
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Lititz, Pennsylvania

Featured Videos

Gardener's Notes:

1
positive
1
neutral
0
negative
Sort By:
Sort By:
S
Lititz, PA (Zone 6b) | May 2015 | positive

I planted two of these on the south facing side or our home at the drip line of our bi-level. It's a very dry area as most of the rain c...Read More

J
J
Belfield, ND (Zone 4a) | March 2009 | neutral

Plant Patent has expired.

Featured
Juniper Hairstreak
(Callophrys gryneus)
Masked Lovebird
(Agapornis personatus)
Featured
Juniper Hairstreak
(Callophrys gryneus)
Masked Lovebird
(Agapornis personatus)