Oak-leaved hydrangea is a shrub for all seasons. The large leaves resemble oak leaves and are deep green and sometimes glossy. They turn a deep burgundy in fall and sometimes can persist into winter. The large cone-shaped flower clusters open white and eventually turn a purplish-pink. Older bark is cinnamon brown color and peels to create a texture that makes this plant interesting even when the leaves are gone.
- Deciduous (seasonally loses leaves)
- North America
- Zone 5
- Zone 6
- Zone 7
- Zone 8
- Zone 9
- Full sun (6 hrs direct light daily)
- Partial sun (4-6 hrs light daily)
- Alkaline soil
- Road salt
- Acid soil
- Moist, well-drained soil
- Medium shrub (5-8 feet)
- Small shrub (3-5 feet)
- Mixed border
- Early winter
- Mid summer
- Late summer
- Early fall
- Mid fall
- Late fall
Size and Form
4 to 6 feet high and wide; upright and irregular form at maturity.
Tree & Plant Care
Best in moist, well-drained, slightly acidic, organic rich soil.
Prefers sun to part shade.
Mulch to keep roots cool and moist.
Flowers on old wood; buds can be damaged in extremely cold winters.
Prune after flowering. Remove winter-damaged stems as soon as leaves begin to emerge in spring.
Disease, pests and problems
No serious problems.
Native geographic location and habitat
Native to the Southeastern United States.
Bark color and texture
Cinnamon brown, peeling, interesting in winter.
Leaf or needle arrangement, size, shape, and texture
Simple, opposite leaves, lobed like an oak leaf; 3 to 8 inches long.
Dark green in summer; red or burgundy in fall.
Flower arrangement, shape, and size
Showy, long-pointed flower clusters bloom in midsummer and last into fall, opening white, gradually changing to pink and then brown. Dried clusters can last all winter. Fragrant.
Fruit, cone, nut, and seed descriptions
The actual fruit (a dry capsule) is not ornamentally important, but the remains of the dry flower heads that surround them do provide winter interest.
Cultivars and their differences
Alice (Hydrangea quercifolia 'Alice'): White flowers, maturing to pink, in 12 to 14 inch clusters. 5 to 8 feet tall. Leaves turn burgundy in fall.
Little Honey (Hydrangea quercifolia 'Little Honey'): White flowers in 5 to 6 inch clusters. Grows 2 to 3 feet tall. Yellow leaves turning to orange-red in fall.
Pee Wee (Hydrangea quercifolia 'Pee Wee'): White flowers fading to pink; cluster 4 to 5 inches. Grows 2 to 4 feet tall. Fall color is red to red-purple.
Sikes Dwarf (Hydrangea nquercifolia 'Sikes Dwarf'): White flowers in 3 to 4 inch clusters, fading to pink. 2 to 3 feet tall. Fall color is red to red-purple.
Snowflake (Hydrangea quercifolia 'Snowflake'): White double flowers in long clusters. 5 to 8 feet tall. Red-purple fall color.
Snow Queen (Hydrangea quercifolia 'Snow Queen'): White flowers maturing to pink. 4 to 6 feet tall. Large, dense, full flower clusters. Red-bronze fall color.