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Tree Guide

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Blue HydrangeaHydrangea macrophylla 'Nikko'

  • Blue Hydrangea bush - Hydrangea macrophylla Nikko Blue
 

The blue hydrangea is the image most of us conger up in our heads when we think of hydrangeas in general. It is a timeless landscape plant beloved by many, including Martha Stewart.

Giant, long-lasting, mophead blooms appear in the summer, adding lovely color to the landscape. These shrubs work well as stand-alone specimens or as a hedge.

Hardiness Zones

The potted blue hydrangea can be expected to grow in Hardiness Zones 6–9. View Map

Tree Type

Mature Size

The blue hydrangea grows to a height of 3–6' and a spread of 3–6' at maturity.

Growth Speed Fast Growth Rate

This shrub grows at a fast rate, with height increases of more than 24" per year.

Sun Preference

Full sun and partial shade are best for this shrub, meaning it prefers a minimum of 4 hours of direct, unfiltered sunlight each day.

Soil Preference

The blue hydrangea grows in acidic, loamy, moist, rich, sandy, silty loam and well-drained soils.

History/Lore

There is an overabundance of Hydrangea macrophylla cultivars, and many of them have been renamed because the original names were lost over time.