About
A clump-forming perennial with toothed, oval leaves with a characteristic fish-tail split at the tip. In summer branched clusters of pure white, hydrangea-like flowers with yellow stamens are borne above the foliage. Height 40cm (16in)
About the 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
Growing conditions
SunlightPartial shade
Soil typeChalk, Clay, Loam
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectEast-facing, North-facing, West-facing
ExposureSheltered
UK hardinessH5
Plant details
Plant typeHerbaceous Perennial
HabitBushy
FoliageDeciduous
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCity and courtyard gardens, Cottage and informal garden
Native toJapan
ToxicitySkin 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
Care notes
CultivationGrow in any reliably moist, humus-rich soil in partial shade. Shelter from cold, drying winds. Dislikes heat or drought.
PruningNo pruning required. Cut back dead stems in autumn/winter
PropagationPropagate from seed sown in containers in a cold frame as soon as ripe. Germination is erratic. Seedlings take several years to reach flowering size. Alternatively, divide clumps in early spring. These can be slow to re-establish.
Pest resistanceMay be susceptible to slugs
Disease resistanceMay be susceptible to a leaf spot, powdery mildews, grey moulds (Botrytis) and honey fungus (rarely)