3-Gallon Nikko Blue Hydrangea is a bold-branching deciduous shrub that blooms on old wood. Its large serrated medium green leaves have no fall color. The color of the lace-cap clusters depends on the soil PH - acidic soils produce bright milky blue flowers, while alkaline soils produce pink-hued flowers. The flowers are highly attractive to butterflies. Best bloom in partial sun and rich, moist well-drained soils.
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Type: |
Shrub |
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Origins: |
East Asia |
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Height: |
4' - 6' |
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Spread: |
4' - 6’ |
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Spacing: |
5’ |
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USDA Hardiness Zone: |
5 - 9 |
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Culture: |
Part Sun |
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Bloom Color: |
Blue (acidic), Pink (alkaline) |
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Season of Interest: |
Summer |
MAINTENANCE NEEDS: Medium Maintenance. Mulch soil to maintain moisture and overwinter. If pruning is needed do so after flowering. Slight susceptibility to bud blight, wilt, leaf spot, and mildew. Aphids are occasional problems.
LANDSCAPE USES: Accents or Group Plantings, Borders, Woodland Gardens, Foundation Plantings, Hedges, Containers.
COMPANION PLANTS: Azalea, Astilbe, Coral Bells
IMAGES: Dr. Koto, Hydrangea macrophylla Nikko Blue, CC BY 3.0
*As plants have ranges in appearance they may not appear as the images shown