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Mahonia oiwakensis subsp. lomariifolia var. tenuifoliola

A vigorous, upright, evergreen shrub or small tree about 3-4m tall, with glossy dark green leaves, coppery when young, and composed of widely spaced slender leaflets. Small golden-yellow flowers in terminal racemes to 25cm long, appear from autumn to winter, followed by glaucous blue-black fruit

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Plant nurseries
3 suppliers

Ultimate height

2.5–4 metres

Time to ultimate height

5–10 years

Ultimate spread

1.5–2.5 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
Full sun
Partial shade

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

How to grow

Cultivation

Tolerates a wide range of soil types and positions, but thrives in humus-rich, moist soil in full sun or partial shade with shelter from cold drying winds. See mahonia cultivation

Propagation

Propagate by semi-ripe cuttings from late summer to autumn

Suggested planting locations and garden types

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

Pruning

Pruning group 8

Pests

Generally pest-free

Diseases

Generally disease-free

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