Hydrangea macrophylla 'Izu-no-hana' (L/d)
hydrangea 'Izu-no-hana'
A rounded, bushy shrub to about 1.5m, with broad, slightly serrated, dark green foliage. The lacecap flowers have dense clusters of small, fertile florets in the centre, surrounded by large, widely spaced, infertile florets with pointed petals. The flowers, produced from late summer, are blue on acid soil and pink on alkaline soil, both colours fading to dark pink and green in late autumn
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Size
Ultimate height
1–1.5 metresTime to ultimate height
5–10 yearsUltimate spread
1–1.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Blue Pink | Green | ||
| Autumn | Blue Pink | Green | ||
| Winter | Green Pink |
Position
- Partial shade
Aspect
East–facing or West–facing or North–facing
Exposure
Sheltered Hardiness
H5Botanical details
- Family
- Hydrangeaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Potentially harmful
- Skin allergen. Wear gloves and other protective equipment when handling. Pets (dogs, cats): Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
- Genus
Hydrangea can be deciduous or evergreen shrubs, or self-clinging climbers, with flowers in clusters usually comprising both small fertile and more showy sterile flowers; often good autumn colour
- Name status
Accepted
- Horticultural Group
- Lace cap hydrangeas are compact deciduous shrubs with broadly ovate leaves and flat or gently domed clusters of small fertile flowers, with showy sterile flowers around the margin
How to grow
Cultivation
Grow in any moist but well-drained soil in partial shade or grow in sun if soil remains reliably moist. Improve chalky soils with organic matter to support good growth. See shrubby hydrangea cultivation for further advice
Propagation
Propagate by softwood cuttings in early summer or hardwood cuttings in winter
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Patio and container plants
- Coastal
- Cut flowers
- Flower borders and beds
Pruning
See pruning group 4 for further advice and video guide
Pests
May be susceptible to aphids, capsid bug, hydrangea scale and vine weevil
Diseases
May be susceptible to a leaf spot, grey moulds, powdery mildews and honey fungus
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.