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Climber Wall Shrub

Clematis × diversifolia

A deciduous sub-shrub with a woody base and herbaceous shoots climbing up to 3m high, with deep green pinnate leaves, and nodding flowers of four blue-violet petals and creamy anthers in summer and autumn

Synonyms

Clematis × eriostemon
Clematis hendersonii Stand.

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Ultimate height

2.5–4 metres

Time to ultimate height

2–5 years

Ultimate spread

1–1.5 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but 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

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)

Botanical details

Family: Ranunculaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Climbing
Potentially harmful: Skin irritant. Wear gloves and other protective equipment when handling. Pets (rabbits): Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Clematis can be deciduous or evergreen shrubs or herbaceous perennials, mostly climbing by twining leaf-stalks, and often with showy flowers. Some have attractive fluffy seedheads in autumn
Name status: Correct

How to grow

Cultivation

Plant in a moisture-retentive, well-drained soil in sun or partial shade; keep the base of the plant and the roots cool and shaded by other plants or a layer of pebbles or flat stones at the base See clematis cultivation for more advice

Propagation

Propagate by double leaf-bud semi-ripe cuttings taken from spring to late summer, or by layering from late winter to spring

Suggested planting locations and garden types

Cottage and informal garden
City and courtyard gardens
Flower borders and beds
Wall side borders

Pruning

Clematis pruning: group three

Pests

May be susceptible to aphids and capsid bug; flowers may be damaged by earwigs; young shoots are vulnerable to slugs and snails; container-grown plants may be susceptible to vine weevils

Diseases

May be susceptible to honey fungus (rarely), clematis wilt and clematis slime flux

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.