Hydrangea arborescens (Smooth Hydrangea, Wild Hydrangea, Sevenbark)


Botanical Information

FamilyHydrangeaceae
GenusHydrangea
Speciesarborescens
CategoryWoody
TypeShrub (deciduous)
OriginNative to Eastern United States of America.
Pronunciation

Details

USDA Hardiness Zone3-9
USDA Hardiness Ref.
Canadian Hardiness Zone4
Canada Hardiness Ref.
RHS Hardiness ZoneH3-H7
RHS Hardiness Ref.
Temperature (°C)-40- (-1.1)
Temperature (°F)-30-40
Height0.5-1.5 m
Spread0.5-1.5 m
GrowthFast
Flowering PeriodMay, June

Description and Growing Information

ShapeLow growing, round.
LandscapeUsed well as mass planting, woodland garden or background.
PropagationPropagated by seed, stem cuttings or crown division in early spring.
CultivationVery tolerant plant, grows in a variety of soils with full sun to filtered shade.
HabitatNaturally found in moist soils, under forest canopies, along woodland banks and streams.
Bark/Stem DescriptionThe stem bark has a peculiar tendency to peel off in several successive thin layers with different colours, hence the common name "sevenbark".
Leaf DescriptionThe leaves of smooth hydrangea are large, 8-18 cm long, opposite, serrated, ovate, and deciduous. The lower leaf surface is glabrous or with inconspicuous fine hairs, appearing green; trichomes of the lower surface are restricted to the midrib and ma
Flower DescriptionThe inflorescence of smooth hydrangea is a corymb. The showy, sterile flowers are usually absent or if present they are usually less than 1 cm in diameter.
Fruit DescriptionFruit is a ribbed brown capsule about 2 mm long; many are produced.

Photographs