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Shrubs

Mahonia gracilipes

slender Oregon grape

A low-growing, small evergreen shrub, about 1m tall, with large leaves to 40cm long with 7 leaflets edged with spines, and as they emerge are flushed with burgundy, and have a white waxy covering beneath. Small bell-shaped, purple-red flowers, appearing in later summer to autumn are creamy-white on the inside, followed by bloomy black fruits on red stalks

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Ultimate height

1–1.5 metres

Time to ultimate height

5–10 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
Full sun

Aspect

East–facing or North–facing or South–facing or West–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: Correct
Plant range: SW China

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 seed or semi-ripe cuttings

Suggested planting locations and garden types

Architectural
Low Maintenance
Banks and slopes
Flower borders and beds

Pruning

Prune every other year to encourage bushy growth - pruning group 8.

Pests

Generally pest-free

Diseases

May be susceptible to rust diseases and Powdery mildews, especially in dry weather.

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