Blue Mophead Hydrangea

Hydrangea macrophylla

Blue Mophead Hydrangea is a fast-growing shrub, hardy in USDA zones 6-9, that matures to about 3-6 ft × 3-6 ft. It does best in part shade with medium water needs in well-drained and occasionally-wet soil. Expect blue, pink and purple blooms in summer. It stands up well to salt, grows happily in containers.

USDA zones: 6-9
Sun: Part shade
Water: Medium
Mature size: 3-6 ft × 3-6 ft
Spacing: 3 feet-6 feet
Growth rate: Fast
Maintenance: Medium
Soil: Well-drained, Occasionally-wet
Foliage: Yellow, Green
Bloom color: Blue, Pink, Purple, White
Bloom season: Summer
Tough against: Salt
Toxic to: People, Dogs, Cats, Horses
Native to: China, Japan, Central and South America, Mexico

Freeze survival

Will it survive your winters?

We score Blue Mophead Hydrangea’s freeze-trouble range against the real coldest nights your area has recorded.

Powered by ~35 years of daily lows from the nearest NOAA weather station. A risk read, not a guarantee — a sheltered spot or mature plant beats the odds.