About
Mahonia aquifolium, the Oregon grape, is a vigorous, low, spreading, evergreen shrub with glossy, slightly prickly leaves that turn purplish in winter. Large clusters of yellow flowers appear in spring, followed by blue-black berries. One of the most popular and versatile of all evergreen shrubs for ground cover and shaded positions.
About the genus
Mahonia are evergreen shrubs with bold, leathery, pinnate leaves, often with spine-toothed leaflets, and clustered racemes of small, sometimes fragrant, yellow flowers in late autumn to early spring, sometimes followed by black or purple berries. Popular garden shrubs for shade and structure.
Growing conditions
SunlightFull shade, Partial shade
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, North-facing, West-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH5
Plant details
Plant typeShrubs
HabitBushy
FoliageEvergreen
Height0.5-1 metres
Spread1-1.5 metres
Time to full height5-10 years
Suggested usesCity and courtyard gardens, Coastal, Cottage and informal garden, Wildlife gardens
Native toW North America
ToxicityBerries are ornamental, not to be eaten. Wear gloves and other protective equipment when handling
Care notes
CultivationGrow in humus-rich moist but well-drained soil, suited to full or partial shade in a sheltered position but tolerant of sun if soil is not too dry. See mahonia cultivation for further information
PruningPruning group 8
PropagationPropagate by seed and semi-hardwood cuttings
Pest resistanceGenerally pest-free
Disease resistanceMay be susceptible to a rust and powdery mildews