Clematis cirrhosa 'Ourika Valley' (C)

RHS Plant Profile
clematis 'Ourika Valley'

Save a plant

Where do you want to save Clematis cirrhosa 'Ourika Valley' (C)?

Plants I own
Wishlist
Go to My Plants
Plants for pollinators
Climber Wall Shrub
Thank you - your purchase supports our charity work Buy this from RHS Plants Shop
Buy online from £17.99Buy this from Plant Nurseries
7 Suppliers

A vigorous, early-flowering evergreen climber to about 3.5m, with rich green leaves composed of 3 leaflets. Small, single, nodding, cup-shaped flowers, 5cm across, are pale yellow tinged green, with cream anthers, and produced from late winter to early spring, followed by silky seedheads

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

2.5-4 metres

Max Spread

1-1.5 metres

Size

Time to Maturity
2–5 years
Max Spread
1-1.5 metres
Max Height
2.5-4 metres

Growing Conditions

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

Position

Full sun Partial shade
Aspect
South–facing or West–facing
Exposure
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)
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Ranunculaceae
Native to GB/Ireland
No
Foliage
Evergreen
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
Accepted
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea

Cirrhosa Group clematis are evergreen woody climbers with bell to bowl-shaped single flowers, produced from late autumn to early spring on the previous year's growth

How to Grow

Cultivation

Needs a warm, sheltered position with fertile, well-drained soil. Plant with the crown at soil level. Keep the base shaded and cool by the careful positioning of plants. In cold areas, grow in a container and overwinter in a greenhouse or conservatory. See clematis cultivation for further information

Propagation

Propagate by layering in late winter or early spring, by softwood cuttings in spring, or semi-ripe cuttings in early summer

Suggested planting locations and garden types

  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Mediterranean climate plants
  • Wildlife gardens
  • Wall side borders
  • Climber and wall shrubs

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 (rarely) and clematis slime flux