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Climber Wall Shrub

Clematis montana var. grandiflora (M)

white anemone clematis

A very vigorous large deciduous climber with trifoliate leaves. Single pure white flowers to 7cm across from late spring to early summer with occasional later flowers.

Synonyms
Clematis montana 'Grandiflora'
Clematis 'Grandiflora'
see moreClematis longicauda
Clematis grandiflora
Clematis anemoniflora
Clematis montana f. grandiflora

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Size
Ultimate height
8–12 metres
Time to ultimate height
2–5 years
Ultimate spread
2.5–4 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer White Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or North–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H5
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

Horticultural Group
Montana Group clematis are vigorous deciduous climbers with single, 4-petalled flowers opening in late spring and early summer
Plant range
Ethiopia

How to grow

Cultivation

Plant in a moisture-retentive, well-drained soil, with the roots and base of the plant kept cool and shaded by other plants or a layer of pebbles at the base. Plant with the crown 5-8cm (2-3in) deep to encourage shoots to grow from below ground level. Best in a sheltered sunny situation. See clematis cultivation for more advice

Propagation

Propagate by layering or semi-hardwood cuttings

Suggested planting locations and garden types
  • Wall side borders
Pruning

Pruning (clematis) group 1

Pests

May be susceptible to aphids, snails and caterpillars; petals may be eaten by earwigs

Diseases

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

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