Hydrangea macrophylla 'Blue Wave'

Largeleaf Hydrangea

Hydrangea macrophylla 'Blue Wave' — commonly called Blue Wave lacecap hydrangea — is a deciduous shrub valued for its large lacecap flower heads with rich blue fertile centers surrounded by broad blue sterile florets in acidic soil, shifting toward pink-lavender in more alkaline soils. Summer blooms are carried above dark green serrated foliage, giving the plant a graceful and airy appearance.

Mature Size:
Width: 4–6 ft
Height: 4–6 ft

USDA Zones: 6a–9b

Form: Rounded, spreading shrub

Light: Partial shade to morning sun with afternoon shade

Soil / Water: Moist, well-drained, fertile soil; prefers consistent moisture and organic-rich conditions

Features / Wildlife / Landscape Uses:
Large lacecap blooms attract bees and other pollinating insects while adding elegant summer color to woodland borders, foundation plantings, cottage gardens, and mixed shrub beds. Particularly effective in acidic soils where blue flower color intensifies.

Care:
Prune only after flowering if needed, since flower buds form on old wood. Mulch roots to conserve moisture and help protect buds in colder climates.

Plant type

Flowering Deciduous Shrub

Height

4-6'

Width

4-6'

Hardiness zones

5–9

Sunlight

Full Sun, Partial Shade

Growth rate

Fast

Bloom time

Early Summer, Summer

Flower color

Blue, White

Leaf color

Dark Green

Fall color

Dark Green

Attracts

Butterflies, Hummingbirds

Soil

Moist well-drained, Rich

Landscape use

Accent Plant, Container, Foundation Plant, Mass Planting

Shape

Dense, Rounded

Bark

Smooth

Fruit

Yes

Drought tolerant

No