Not the plant you're looking for? Search over 300,000 plants

Shrubs

Mahonia × wagneri 'Pinnacle'

Oregon grape 'Pinnacle'

A vigorous evergreen shrub of upright growth to 1.5m, with glossy pinnate bright green leaves which open coppery-tinted. Flowers bright yellow, in dense terminal clusters in spring, followed by blue-black berries

Synonyms

Berberis aquifolium 'Fascicularis'
Mahonia × wagneri 'Pinnata'
see moreMahonia aquifolium 'Fascicularis'
Mahonia fascicularis
Mahonia pinnata misapplied

Save to My plants

Buy this plant

Plant nurseries
10 suppliers

Ultimate height

1–1.5 metres

Time to ultimate height

10–20 years

Ultimate spread

1–1.5 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full shade
Partial shade

Aspect

West–facing or South–facing or North–facing or East–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Berberidaceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Bushy
Potentially harmful: Berries are ornamental, not to be eaten. Wear gloves and other protective equipment when handling
Genus: Mahonia are evergreen shrubs with leathery, pinnate leaves which are often spine-toothed, and clustered racemes of sometimes fragrant yellow flowers, sometimes followed by black or purple berries
Name status: Accepted

How to grow

Cultivation

Grow 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

Propagation

Propagate by semi-ripe cuttings

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Coastal
Wildlife gardens
Low Maintenance
Flower borders and beds
Hedging and screens

Pruning

Pruning group 8

Pests

Generally pest-free

Diseases

Generally disease- free

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.