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Shrubs

Berberis insignis

A dense, evergreen shrub, rare in cultivation, about 1.5-1.8m tall, with mainly spineless, upright, yellowish stems. Very large, Mahonia-like, dark glossy-green leaves are 18cm long, narrowly oval with short, spiny teeth. Dense clusters of large pale yellow flowers in spring are followed by black berries in autumn

Synonyms

Berberis insignis var. tongloensis

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Ultimate height

1.5–2.5 metres

Time to ultimate height

5–10 years

Ultimate spread

1.5–2.5 metres

Chalk

Loam

Sand

Moisture

Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

South–facing or West–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 the UK: No
Foliage: Evergreen
Habit: Bushy
Potentially harmful: Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus: Berberis can be deciduous or evergreen shrubs with spiny shoots bearing simple, often spine-toothed leaves, and small yellow or orange flowers in axillary clusters or racemes, followed by small berries
Name status: Correct
Plant range: N India, Sikkim, Nepal, Bhutan

How to grow

Cultivation

Grows best in any well-drained soil in full sun or partial shade, though flowering and fruiting are best in full sun. Suited to milder localities only in a sheltered position. See berberis cultivation for further advice

Propagation

Propagate by seed in early spring; by semi-ripe cuttings in summer

Suggested planting locations and garden types

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

Pruning

Pruning group 8; trim hedges after flowering

Pests

May be susceptible to aphids and berberis sawfly

Diseases

May be susceptible to powdery mildews and sometimes by honey fungus

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