About

Berberis thunbergii 'Boum' is a small, low-growing shrub notable for its unique coloration. The flowers are pale yellow and not particularly prominent, while the foliage features a mix of cream and green, paired with red stems. New growth may exhibit a pinkish tint throughout. In autumn, bright red berries emerge, coinciding with a change in leaf color to shades of orange-red.

About the genus

Berberis consists of shrubs that can be either deciduous or evergreen, characterized by their spiny branches and simple leaves that may have spine-like serrations. The plants produce small yellow or orange flowers, which appear in clusters or racemes in the leaf axils, eventually yielding small berries.

Growing conditions

Sunlight
Full sun, Partial shade
Soil type
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained, Well-drained
Aspect
West-facing, North-facing, East-facing
Exposure
Exposed, Sheltered
UK hardiness
H7

Plant details

Plant type
Shrubs
Habit
Bushy
Foliage
Deciduous
Height
0.5-1 metres
Spread
0.5-1 metres
Time to full height
10-20 years
Suggested uses
City and courtyard gardens, Coastal, Cottage and informal garden, Rock garden, Wildlife gardens
Toxicity
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

Care notes

Cultivation
Tolerant of a range of soils and locations, but grows best in any well drained soil in full sun or partial shade, though flowering and fruiting are best in full sun. See berberis cultivation for further advice
Pruning
Pruning group 2
Propagation
Propagate by softwood or semi-hardwood cuttings in summer
Pest resistance
May be susceptible to aphids and berberis sawfly
Disease resistance
May be susceptible to powdery mildews and sometimes by honey fungus