Hydrangea macrophylla 'Mousmee'

Mousmee Bigleaf Hydrangea

Hydrangea macrophylla ‘Mousmée’ is a deciduous shrub admired for its graceful lacecap flower heads with broad outer florets surrounding delicate fertile center flowers. This bigleaf hydrangea blooms in summer on old wood, with flowers typically appearing soft pink, rose, or bluish tones depending on soil pH. Its dark green foliage and elegant lacecap structure give it a refined appearance well suited to shaded garden settings.

Type: Deciduuous shrub
Mature Size: Width: 4–6 ft · Height: 4–6 ft
USDA Zones: 6a–9b

Form: Upright, rounded

Light: Part shade to filtered sun

Soil: Rich, moist, well-drained soil

Water: Medium; prefers evenly moist soil

Wildlife: Attracts bees and other pollinating insects

Features & Landscape Uses:
A classic lacecap hydrangea for woodland gardens, borders, and foundation plantings where its open flower form adds delicate texture. Flower color becomes bluer in acidic soils and pinker in alkaline soils.

Care:
Plant in part shade with fertile, organic-rich soil that remains consistently moist. Prune immediately after flowering if shaping is 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

3'

Width

3-6'

Hardiness zones

5–9

Sunlight

Filtered Sun, Partial Shade

Bloom time

Early Fall, Late Spring, Summer

Leaf color

Green

Fall color

Green

Attracts

Butterflies, Hummingbirds

Soil

Moist well-drained, Rich

Landscape use

Accent Plant, Container, Foundation Plant, Mass Planting

Shape

Rounded, Upright

Fruit

Yes

Fragrant

Yes

Drought tolerant

No