Nikko Blue Hydrangea
Hydrangea macrophylla 'Nikko Blue'
The classic blue mophead. Rich, true blue in acidic soil. A cottage garden essential.
Handle with care
The leaves and flower buds contain a cyanide compound. It is rarely a problem for people, but it is listed as toxic to dogs, cats, and horses, so keep prunings away from animals that browse.
Bloom Season
Jun - Aug
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Sun Requirements
◐ Part Sun4-6 hours
◑ Part Shade2-4 hours
Water Needs
Moderate
Regular watering
Size & Zones
4-6' tall
USDA Zones 5-9
Bloom Colors
Blue
Traits
✂ Cut Flower
Soil
ClayLoam
Where to buy
Find Nikko Blue Hydrangea plants on Amazon.
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Other Hydrangea Varieties
Endless Summer
Reblooms on old and new wood, so you get flowers even after a harsh winter.
Limelight
Cone-shaped blooms open chartreuse, mature to white, then blush pink in fall.
Annabelle
Enormous snowball blooms on a native species.
Incrediball
Annabelle's bigger sibling with stronger stems that don't flop.
Little Lime
Compact Limelight.
Bobo
Dwarf paniculata smothered in blooms.
Quick Fire
Blooms a full month before other paniculatas.
Pinky Winky
Two-tone blooms with white tips and pink bases.
Strawberry Sundae
Compact paniculata cones open creamy white, blush pink in summer, then deepen to strawberry red as fall arrives.
Tuff Stuff
Reblooming mountain hydrangea with delicate lacecap blooms.
Invincibelle Spirit II
The first pink Annabelle-type hydrangea, with strong stems holding hot-pink globe blooms upright through the season.
Vanilla Strawberry
Cone blooms open creamy white, age to soft pink, then deepen to strawberry red while new white cones keep emerging above them.
Phantom
Huge cone blooms up to 15 inches long open white and age to dusty pink.
Fire Light
Upright cones open pure white and transform to deep pomegranate red as the season ages.
Little Quick Fire
Compact form of Quick Fire that blooms early on a container-sized plant.
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