Berberis aquifolium 'Woodland King' (Woodland King Oregon Grape Holly)


Botanical Information

FamilyBerberidaceae
GenusBerberis
Speciesaquifolium
Cultivar'Woodland King'
SynonymsMahonia aquifolium 'Woodland King' (Name changed to Berberis aquifolium 'Woodland King' in 2019)
CategoryWoody
TypeShrub (evergreen)

Details

USDA Hardiness Zone5
USDA Hardiness Ref.
Canadian Hardiness Zone4 - 6a
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)-29 - (-23)
Temperature (°F)-20 - (-10)
Height2 m
Flowering PeriodJanuary, February

Description and Growing Information

LandscapeValuable as medium-height groundcover, however it may become invasive and should be held in check through the removal of unwanted shoots.
PropagationPropagate by fresh seed, although hybridization is likely to occur. May also be propagated through division.
CultivationGrow in full sun, will tolerate a range of soils and climactic conditions.
PestsSusceptible to the bacterium Pseudomonas berberidis, which causes small, purple-black spots on the leaves and can be controlled with a fungicide spray. Powdery mildew and root rot may also cause problems, and infestations by the berberry aphid (Liosomaphis berberidis) are possible.
Notable SpecimensRoyal Botanical Gardens, Burlington, Ontario, Canada.
HabitatHorticultural origin.

Photographs