Hydrangea, Oakleaf

Oakleaf Hydrangea (Hydrangea quercifolia)

Oakleaf hydrangea gives the woodland shrub layer broad leaves, summer flower clusters, and peeling bark. White blooms age through pink and tan, while burgundy to purple foliage extends the display into autumn.

Look Closely at the Flower Cluster

The panicles contain showy sterile florets and smaller fertile flowers that visiting insects can use. Butterflies and other insects visit the blooms, and songbirds may take the seeds. Keeping a mix of flower forms in the surrounding border gives insects resources beyond this shrub’s flowering season.

A Broad Shrub for a Layered Garden

Use it at an open woodland edge or in an informal hedge where its mature width is welcome. Its large leaves contrast with ferns, sedges, and finer-textured shrubs. Avoid crowding it into a narrow foundation strip where repeated shearing would remove the natural form.

Keep Next Year’s Flowers

Oakleaf hydrangea blooms on old wood. If shaping is needed, prune soon after flowering rather than cutting the whole shrub back in winter. Give it rich, well-drained soil and establishment water; afternoon shade helps on hot sites, but deep shade can reduce bloom.

Product Details

• Sun: Full sun to partial shade; afternoon shade is useful in hot locations.
• Soil: Moist, organically rich, well-drained soil.
• Mature height: About 4–8 feet, with a broad spread.
• Bloom: Late spring to early summer; flowers age pink to tan.
• Hardiness: USDA zones 5–9.
• Fruit or seed: Small dry capsules; a landscape shrub, not a human food crop.