Phellodendron amurense

RHS Plant Profile
Amur cork tree

Other common names

黄檗 (huáng bò), Siberian cork tree

Trees

A deciduous tree, up to around 15m high, with a broadly spreading habit, and thick corky bark when mature. Leaves are glossy and aromatic, and divided into up to 13 green leaflets that turn clear yellow in autumn. Clusters of small green flowers are produced in summer; if pollinated these are followed by small round black berries. Winter buds are coated with fine silvery hairs

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Higher than 12 metres

Max Spread

wider than 8 metres

Size

Time to Maturity
10–20 years
Max Spread
wider than 8 metres
Max Height
Higher than 12 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness
H7

Colour & Scent

Fragrance Foliage
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Rutaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Spreading branched
Genus
Name Status
Correct
Plant Range
E Asia

How to Grow

Cultivation

Grow in deep, fertile, well-drained soil in full sun, thrives in areas with hot summers. Young growth can be damaged by late frosts. Needs plenty of space. Plant male and female plants together to ensure berries

Propagation

Propagate by seed or by heeled semi-ripe cuttings in summer

Suggested planting locations and garden types

  • Architectural
  • Cottage and informal garden
  • Low Maintenance

Pruning

Minimal pruning required, see pruning group 1

Pests

Generally pest-free

Diseases

Generally disease-free