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ALASKA HAWAII MIDWEST NORTHEAST PACIFIC NORTHWEST SOUTHEAST SOUTHWEST WEST Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Zone 9 Zone 10
What is this To help gardeners understand which plants will grow well for them, the entire USA has been segmented into ‘Plant Hardiness Zones’.

Nikko Blue Hydrangea

 
 
Blue Hydrangea Nikko Blue, Hydrangea macrophylla View Larger Image

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Shipping begins in mid April based on ground temperatures, warmest zones first. Learn More…

'Nikko Blue' Hydrangea is a fast-growing shrub with large, rounded flower clusters that bloom in a rich, sky blue throughout the summer season. When planted in alkaline soils, blooms also take on purple and pinkish hues. This cold-hardy mophead variety grows and spreads to 6’ x 6’ and prefers a shade to part shade location. (Hydrangea Macrophylla)

Zones 6 - 9
Advantages
Cut Flowers
Cut Flowers
Extended Blooms
Extended Blooms
Light Requirements
Full Sun
Full Sun
Half Sun / Half Shade
Half Sun / Half Shade
Mature Plant Size 48-72" tall (4-6 feet), 48-72" wide (4-6 feet)
Bloom Time Early to late summer
Size Plant - 3.5" pot
SKU 12SHRUB

Plant Information

48-72" tall x 48-72" wide. With long-lasting flower clusters and large, bright green foliage, ‘Nikko Blue’ provides an eye-catching accent in entry gardens and patio plantings. The vibrant blooms last for months, providing texture well into autumn even after their color fades. Cut a handful of flowers for a luxurious bouquet. ‘Nikko Blue’ is also ideal for dried arrangements, holding color well when dried properly. All that lush foliage makes for a thirsty shrub so keep plants well-watered and protect from drying winds. Provide a layer of mulch year-round to conserve soil moisture and regulate root temperatures. Plants seldom require pruning. If needed, wait until after flowering to prune as ‘Nikko Blue’ blooms on old wood. Weak or winter-damaged stems can be removed in late winter or early spring before growth resumes. No serious insect or disease problems.

About Hydrangeas

Hydrangea shrubs are native to the US and Asia and produce showy flowers throughout the summer season. There are many varieties available, each showcasing differing bloom colors, flower shapes, overall heights/spreads, levels of winter hardiness, and abilities to be grown in containers.

What does "Blooms on old/new wood" mean and what does that have to do with winter?

Some hydrangeas produce buds that will turn into flowers on old wood (also called "last year's growth"), while others produce blooms on new wood (aka "this year's growth") and still others will flower on both old and new wood. This detail is especially valuable for cold-climate gardeners who may be apt to lose some of their hydrangea branches to breakage from heavy snow and ice, or who may see developing buds killed off by late spring frosts.

For these gardeners, losing old growth branches and young buds could mean missing out on hydrangea flowers the following summer. Choosing a variety that blooms on new wood (or both types of growth) is extra insurance; it means that regardless of your winter and late-spring weather, you can still count on your shrub to produce flowers come summer.

Likewise, warm-climate gardeners who choose varieties that only bloom on new wood, will have to make it a point to prune their hydrangea shrubs in order to encourage new buds to form. A simple task for sure, but one that needs to be remembered.

What does "Bloom color depends on soil type" mean?

The color of most hydrangea blooms are directly tied to the mineral make up of your soil and its overall pH. To really see bold colors, you'll have the best results when planting in containers, which will allow you to create your preferred soil conditions at planting time. Although soil pH can be changed directly in the garden bed, it often takes more than one season to see results. The color of native Smooth hydrangeas (Hydrangea arborescens) cannot be changed.

Acid soils (with a pH below 7) produce purple-to-blue blooms, with the brightest blue blooms resulting from the most-acidic soils. To coax your hydrangeas into producing blue blooms, you can amend your soil with sulfur, or mulch your plants with a pine and/or cedar needle mulch.

Alkaline soils (with a pH above 7) produce pink blooms. The more alakaline (or sweet) your soil is, the deeper pink your blooms will be. This can be achieved by adding lime around your planting area. It is, however, more difficult to turn hydrangea blooms pink because as a general rule, most plants struggle to be healthy in soils with a pH above 7.


Hydrangea Types

Many hydrangeas today are available in a range of heights and bloom cycles, regardless of their overall type. For example, you can find Mopheads that bloom on new growth and Panicles that are container-friendly.

Mopheads: (Hydrangea macrophylla) The most well-known (yet least cold hardy) hydrangea, Mopheads are known for their oversized blooms that come in two flower types - Lacecaps and Pom-poms. Also known as "Bigleaf" hydrangeas, the foliage on Mopheads is quite enormous and delivers a lot of greenery to the garden.

Panicle: (Hydrangea paniculata) Huge, cone-shaped blooms and excellent cold hardiness are the hallmarks of the Panicle hydrangea. Their arching branches and plentiful blooms also tolerate more sun than other varieties.

Smooth/ Snowball: (Hydrangea arborescens) Also known as "Wild" Hydrangeas, these shrubs are native to the eastern US - and while their color cannot be altered by changing soil pH, their blooms tend to turn a pale green as fall approaches.

Mountain: (Hydrangea serrata) More compact than Mopheads and presenting dainty lacecap blooms and smaller leaves, these hydrangeas are native to the mountains of Korea and Japan where they're known as 'Tea of Heaven'. They're known for a slightly weeping shape and a long season of blooms.

Oakleafs: (Hydrangea quercifolia) Native to the eastern/southeastern US, Oakleafs have deeply-lobed foliage that changes color dramatically in autumn. Very cold hardy with showy, elongated blooms.

How to Choose the Right Hydrangeas

SKU 12SHRUB
Common Name Nikko Blue Mophead Hydrangea
Botanical Name Hydrangea macrophylla Nikko Blue
Zones 6, 7, 8, 9
Light Requirements Full Sun, Half Sun / Half Shade
Flower Color Blue
Flower Size 5" Flowers
Mature Height 48-72" tall (4-6 feet)
Estimated Mature Spread 48-72" wide (4-6 feet)
Growth Rate Fast
Bloom Time Early to late summer
Planting Depth Crown of plant should rest just at or above the soil surface after watering in.
Ships As Potted Plant
Foliage Color Green
Foliage Serrate, obovate to elliptic, dark green leaves
Planting Time Spring / Summer
Soil Type Loamy Soil, Acidic Soil
Soil Moisture Average, Well Draining
Advantages Cut Flowers, Extended Blooms
Poisonous or Toxic to Animals Yes. Bark, leaves and flower buds.
Ideal Region Northeast, Midwest, Pacific Northwest
Neonicotinoid-Free Yes - Learn More
Ships to Hawaii, Alaska & Canada No

Shipping

Shipping begins in mid April based on ground temperatures, warmest zones first.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

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Reviewsby PowerReviews

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by PowerReviews
American MeadowsNikko Blue Hydrangea
 
4.0

(based on 2 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (0)

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    (1)

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(2 of 6 customers found this review helpful)

 
5.0

just planted

By 

from Ormond Beach, Florida

About Me Getting Started

Verified Reviewer

Pros

  • Accurate Instructions
  • Attractive

Cons

    Best Uses

    • Garden
    • Outdoors
    • Patio

    Comments about American Meadows Nikko Blue Hydrangea:

    I am a very beginner gardner! Am willing to learn!

    • Primary use:
    • Personal

    (1 of 1 customers found this review helpful)

     
    3.0

    Very Small, but nice so far.

    By 

    from Springfield, OR

    About Me Getting Started

    Verified Reviewer

    Pros

    • Accurate Instructions

    Cons

    • Flimsy
    • Small In Size

    Best Uses

    • Outdoors
    • Patio

    Comments about American Meadows Nikko Blue Hydrangea:

    Small may be a few years before blooms

    • Primary use:
    • Personal

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    Q & A

    Plant With These:

    USDA Hardiness Planting Zones

    To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

    • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
    • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

    Find Your Planting Zone:

    Enter your Zip Code to find your USDA Planting Zone

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