Japanese Barberry
Berberis thunbergii 'Citrus'

Family: Berberidaceae (bear-ber-id-AY-see-ee) (Info)
Genus: Berberis (BUR-bur-is) (Info)
Species: thunbergii (thun-BERG-ee-eye) (Info)
Cultivar: Citrus
Additional cultivar information:(PP24818, Sunjoy series, aka Sunjoy Citrus, Koren)
Hybridized by Wood
Registered or introduced: 2012

Category:

Shrubs

Foliage Color:

Chartreuse/Yellow

Red

Orange

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us

Height:

36-48 in. (90-120 cm)

Spacing:

36-48 in. (90-120 cm)

Hardiness:

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

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)

Sun Exposure:

Full Sun

Danger:

Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:

Inconspicuous/none

Bloom Time:

N/A

Foliage:

Grown for foliage

Deciduous

Good Fall Color

This plant is resistant to deer

Other details:

Unknown - Tell us

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:

Patented

Propagation Methods:

Unknown - Tell us

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Gardeners' Notes:

0
positives
0
neutrals
1
negative
RatingContent
Negative

On Feb 21, 2014, coriaceous from ROSLINDALE, MA wrote:

Trade, transport, and planting this shrub is illegal in my state and two others, because it invades and destroys natural areas. I've seen state woodland turned into impenetrable thorny thickets of this species, where nothing else in the understory layer survives. It has naturalized across North America north of a line running from Georgia to Wyoming, and also in Washington.