Hedera algeriensis 'Ravensholst'

RHS Plant Profile

Algerian ivy 'Ravensholst'

RHS 1993

Other common names

Canary ivy 'Ravensholst'

Synonyms

Hedera colchica 'Ravensholst'
Hedera canariensis misapplied 'Ravensholst'

Climber Wall Shrub

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Vigorous, self-clinging large evergreen climber about 5m in height, with large, lobed, glossy dark green leaves to 20cm in length, sometimes tinged purple in winter; may flower on mature growth

Position

Full sun, Partial shade

Soil Types

Chalk, Loam

Max Height

2.5-4 metres

Max Spread

2.5-4 metres

Size

Time to Maturity: 5–10 years
Max Spread: 2.5-4 metres
Max Height: 2.5-4 metres

Growing Conditions

Chalk Loam

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
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): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Araliaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Climbing
Potentially harmful: Harmful if eaten: skin irritant/allergen. Wear gloves and other protective equipment when handling. Pets (dogs, cats, rabbits, rodents): Harmful if eatenskin irritant/allergen. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Hedera are evergreen climbing shrubs clinging by aerial roots. Clusters of small yellow-green flowers are followed by usually black berries. Foliage of flowering shoots is often less deeply lobed than that of the sterile, climbing shoots
Name Status: Accepted

How to Grow

Cultivation

Grow in fertile, humus-rich, moist but well-drained, preferably alkaline soil in sun or partial shade. Shelter from cold drying winds. See hedera (ivy) cultivation for further advice

Propagation

Propagate by semi-hardwood cuttings in summer

Suggested planting locations and garden types

Cottage and informal garden
City and courtyard gardens
Wildlife gardens
Low Maintenance
Ground cover
Wall side borders
Banks and slopes
Climber and wall shrubs

Pruning

Pruning group 11 at any time

Pests

May be susceptible to glasshouse red spider mite, scale insects, vine weevil and aphids

Diseases

May be susceptible to honey fungus (rarely) and a leaf spot