1 / 3Key characteristics
- Family
- Hydrangeaceae
- Height
- 3 to 5 feet
- Width
- 3 to 5 feet
- Flower color
- Lacecap flowers with blue or pink sepals (depending on soil pH) and small fertile florets in the center
- Foliage color
- Green with hints of red in fall
- Bloom time
- Late spring to early summer
- Light
- Partial shade to full shade
- Water
- Moderate
- Maintenance
- Low; may benefit from light pruning after flowering
- Growing zone
- USDA Zones 5 to 9
- Wildlife
- Butterflies and pollinators
Shrubs
Hydrangea serrata 'Blue Bird'
Blue Bird Hydrangea
Hydrangea serrata 'Blue Bird' is a delicate lacecap hydrangea known for its airy, refined beauty. Its blooms, which appear from late spring to early fall, feature a halo of pale blue to lavender sterile florets encircling a center of fertile flowers in deeper blue or pink, depending on soil pH. The blooms are complemented by dark green leaves that often take on rich burgundy tones in the fall.
Works well in
- Shade Gardens
- Woodland Gardens
- Cottage Gardens
- Cutting Gardens
Companion plants
Leucothoe · Solomon’s seal · Bergenia · Japanese plum yew · Hosta · Snowdrops
Design tip
Use ‘Blue Bird’ to bring soft color and an airy quality to shaded plantings. Its pale blue to lavender lacecap flowers stand out against dark green foliage, while rich burgundy fall tones extend its seasonal interest beyond flowering.
More shrubs

Hydrangea macrophylla subsp. serrata 'SMHSMAKF2MT'
Seaside Serenade Cape May Hydrangea
Blooms large lacecap blooms; bright pink in neutral to alkaline soils and blue to purple in acidic soils
Partial sun

Hydrangea macrophylla 'HORTMANI'
Seaside Serenade Newport Hydrangea
Blooms blue, purple or pink depending on soil ph
Full sun to partial shade

Hydrangea macrophylla 'Variegata'
Variegated Hydrangea
Blooms light pink (alkaline soil), pale blue (acidic soil)
Partial shade to full sun

Hydrangea involucrata
Bracted Hydrangea
Blooms soft pink to blue, with outer sterile florets and inner fertile ones
Partial shade to full sun