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Climber Wall Shrub

Clematis 'Helsingborg' (A)
  • RHS AGM

clematis 'Helsingborg'

'Helsingborg' is a medium-sized deciduous climber with narrow, serrate leaflets. Flowers with four tapering, deep violet-blue sepals to 5cm in length, surrounding pale purple staminodes and stamens are produced mid to late spring

Synonyms
Clematis alpina 'Helsingborg'

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
2–5 years
Ultimate spread
1–1.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Purple Green
Summer Green
Autumn
Winter
Position
  • Full sun
  • Partial shade
Aspect

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

Exposure
Exposed or Sheltered
Hardiness
H6
Botanical details
Family
Ranunculaceae
Native to the UK
No
Foliage
Deciduous
Habit
Climbing
Potentially harmful
Skin irritant. Wear gloves and other protective equipment when handling
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

Accepted

Horticultural Group
Atragene Group Clematis consists of woody climbers with deciduous, 1 to 2-ternate leaves and nodding, bell-shaped, single or double flowers to 10cm across, on old wood in spring and early summer, occasionally also later, on current year's growth

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 new shoots to grow from below ground level. Can be grown in containers at least 45cm (18in) deep and wide in a soil based potting compost. See clematis cultivation for more advice

Propagation

Propagate by layering or semi-hardwood cuttings

Suggested planting locations and garden types
  • Wall side borders
Pruning

Clematis pruning: group one

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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