Hydrangea davidii
David's hydrangea
A small to medium-sized, deciduous shrub up to 1.2m high, with thick, serrated, textured leaves, blue tinted on the reverse and veins. In summer, terminal flowerheads of small, blue fertile flowers, surrounded by large white sterile florets, are produced. The fertile flowers are blue in acid conditions but will become pink in alkaline conditions
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Size
Ultimate height
1–1.5 metresTime to ultimate height
5–10 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green Blue | |||
|---|---|---|---|---|
| Summer | White Pink Blue | Green Blue | ||
| Autumn | Green Blue | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
East–facing or South–facing or West–facing or North–facing
Exposure
Exposed or Sheltered Hardiness
H4Botanical 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
Correct
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
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Flower borders and beds
Pruning
Pests
May be susceptible to aphids, capsid bug and hydrangea scale
Diseases
May be susceptible to a leaf spot, powdery mildews, grey moulds (Botrytis) and honey fungus (rarely)
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