Hydrangea serratifolia
Climbing hydrangea
Also known as Hydrangea interrignum
- Height × spread
- 30m × 10m
- Position
- Full sun
- Hardiness
- Cold to -15C (RHS H5)
- Flowers
- Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This is a handsome plant that can creep or climb, and is often seen as trained against a wall. It is eye-catching with its shiny green smooth looking evergreen leaves, their sides curved upwards. It flowers in June in Britain, producing rather small flowering clusters, knobby ensembles held away from the plant on stout stems. They are coloured a slightly grubby white and are notable for their long stamens. It naturally inhabits South America being found at altitudes of up to 1500m in Chile and Argentina. It can reach quite extraordinary heights, up to 30m (100ft), with a 10m (33ft) spread, so needs placing with some thought for the future.
- Flower colour
- White
- Foliage colour
- Green
- Stem colour
- Brown
- Variegated
- No
- Scent
- No
- Shape
- Fan
- Height
- 30m
- Spread
- 10m
- Season of interest
- Summer
- Flowers in
- Summer
- Evergreen
- Evergreen
- Garden style
- Seaside garden
- Sun or shade
- Likes full sun, likes part shade, tolerates light shade
- Soil type
- Clay, Gravelly soil, Loam (normal), Sandy soil
- Soil pH
- All types
- Drainage
- Moisture retentive soil, Damp and wet soil, Well drained soil, Dry and shady soil
- Hardiness
- Cold to -15C (RHS H5)
- Borders & containers
- Borders
- Use for
- Wall cover, Deer resistant, Rabbit resistant
- Walls
- North, East, South, West facing
- Deer
- Protect from deer when young if in vulnerable area
- Maintenance
- Easycare – low/no maintenance
- Hazards
- Yes, potentially harmful; Humans: Skin allergen
Spring
Spring-Autumn · Outdoors
Water to keep the soil moist
For best results, this plant needs soil that is always moist. Water deeply and regularly as soon as soil appears dry. Even for established plants in the ground, a dry week can cause problems with some soils. Check plants in pots more often, especially in hot weather. Or install an automatic irrigation system which will do the hard work for you, even when you are away on holiday.
Without regular watering some plants never fully regain their beauty.
Summer
Summer - early · Outdoors
Apply slow release fertiliser
Apply a slow release fertiliser which is spread around the root area of the plants soon after they have come into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Summer · Planting
Prune after flowering
Remove any dead or damaged branches, or any growth that looks very untidy. Trim the plant back if necessary to keep it within bounds.
Found in
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