Carpinus betulus

RHS Plant Profile

common hornbeam

Other common names

charmille, European hornbeam, horn beech, horse beech, hurst beech, white beech, yoke elm, oestrywydden

Synonyms

Carpinus caucasia
Carpinus vulgaris
Carpinus caucasica

Trees

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A large deciduous tree developing a fluted grey trunk. Leaves 5-8cm long, ovate, conspicuously ribbed, turning yellow in autumn. Catkins open in spring, followed by hop-like fruiting catkins to 8cm. Good for woodland settings

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Higher than 12 metres

Max Spread

wider than 8 metres

Size

Time to Maturity: more than 50 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 Partial shade

Aspect: East–facing or South–facing or North–facing or West–facing
Exposure: Exposed or 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): H7

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Betulaceae
Native to GB/Ireland: Yes
Foliage: Deciduous
Habit: Bushy
Genus: Carpinus are deciduous shrubs and trees with attractive foliage and hop-like fruit clusters in late summer and autumn
Name Status: Correct
Plant Range: Europe to Iran

How to Grow

Cultivation

Grow in fertile, well-drained soil in full sun or partial shade

Propagation

Propagate by seed, softwood cuttings or by grafting

Suggested planting locations and garden types

Architectural
Cottage and informal garden
Wildlife gardens

Pruning

Pruning group 1

Pests

May be susceptible to caterpillars and aphids

Diseases

May be susceptible to powdery mildews, coral spot and sometimes honey fungus