Hydrangea Nikko Blue Description
Hydrangea Nikko Blue is one of the most reliable blue Hydrangeas; blooming blue in a wider range of soils.
Nikko Blue starts with flowers that are cream with blue margins that turn a solid blue as the plant matures. In acidic soil, Nikko Blue has deep blue flowers, but alkaline soil turns blooms pink. The Blooms are full and fluffy and make for beautiful dried arrangements that keep their color.
Nkko Blue grows well in partial shade. The blooms are formed on growth from the previous season so any pruning should be done right after flowering.
Nikko Blue pairs well with colorful Heuchera, bold-leaf Hostas, and Hardy Ferns.
Hydrangeas are continuing to take the flowering shrub world by storm. They are widely adaptable to both clay and sandy soil provided they are given copious amounts of water during the prolonged summer dry spells. Almost all Hydrangeas thrive under morning sun with protection from the intense afternoon sun. This queen of the flowering shrubs allows for a multitude of uses in garden designs including: solitary specimen, mass plantings, or even container gardens. They even make long-lasting cut flowers!
Special Features: Cut Flower, Dried Flower, Easy Care, Fast Growing, Long Blooming, Moisture Tolerant, Multi-Seasonal Interest
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- Botanical Name:
Hydrangea macrophylla 'Nikko Blue'
- Common Name:
- Sun Exposure:
- Ship Form:
1/2 gallon pot
- Soil Type:
- Soil Moisture:
- Height x Width:
4-6' x 5-7'
- Flower Color:
- Foliage Color:
- Bloom Season:
Background, Foundation Planting, Hedge, Massing, Ornamental, Specimen
- Cannot Ship to:
AK, CAN, HI, PR
- Patent #:
Ideas and How-to's
Recommended for You:
Soil: Average, medium moisture, well-drained soils. Mulch plants after soil has warmed to conserve moisture and buffer soil temperatures.
Generally, a soil pH below 5.0 results in deep, vivid blues and as the pH rises the flowers range from blue to lavender to mauve to a vivid deep pink at pH 7.0 (neutral). The pH determines the availability of aluminum in the soil; this element is more readily available in acid soils, and this availability results in the blue flower color. Since phosphorus ties up aluminum in soils, using a fertilizer low in this nutrient will aid in attaining blue flowers. If pink flowers are desired and your soil is acid, simply add lime to raise the pH, and use a balanced fertilizer. Aluminum sulfate will lower pH if blue flowers are desired.
Light: Most varieties tolerate full sun in the North, but benefit from afternoon shade. Tolerates full sun only if grown with consistent moisture. In the South, plants require afternoon shade. Intolerant of drought, with foliage tending to decline considerably in dry conditions
Water: Water to keep soil moist, but not wet.
Spacing: 4 - 6 ft.
Fertilizing: Fertilize once in spring with a fertilizer designed to encourage blooms (such as 15-30-15).
Winterizing: Remove and destroy any fallen foliage that was infected by powdery mildew. If desired, wrap with burlap or other material to help flower buds overwinter in colder climates.
Maintenance & Pruning: This variety blooms on old wood. If it is growing too large, prune to the desired size by August (to be safe). Later pruning will damage developing flower buds. In spring, only prune out dead wood once the new growth has emerged. Young plants may be transplanted when dormant in early spring.
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