Berberis nervosa (Cascade Oregon Grape, Cascade Mahonia)


Botanical Information

FamilyBerberidaceae
GenusBerberis
Speciesnervosa
CategoryWoody
TypeShrub (evergreen)

Details

USDA Hardiness Zone6 - 9
USDA Hardiness Ref.
Canadian Hardiness Zone7
Canada Hardiness Ref.
RHS Hardiness ZoneH6
RHS Hardiness Ref.
Temperature (°C)-23
Temperature (°F)-15
Height0.6 m
Spread1.2 m
GrowthMedium
Flowering PeriodApril, May

Description and Growing Information

ShapeLow mounding, mat-forming.
LandscapeLoose groundcover under taller shrubs or trees or on steep rises.
PropagationBy seed or semi ripe root or bud cuttings.
CultivationWill grow under full sun to deep shade. Plant in moist to well-drained soil of any type or acidity.
PestsGalls, scales and whiteflies. May be susceptible to rust and leaf spot.
Notable SpecimensVan Dusen Botanical Garden, Vancouver, British Columbia, Canada.
Bark/Stem DescriptionShowy reddish-brown fruit stems.
Colour DescriptionLush green to yellowish-green foliage. Deep indigo to deep blue fruits. Reddish brown mature branches and stems. New growth is brownish-green.

Photographs