Quick Facts
Exposure: Sun or Shade
Height at Maturity: Under 10 Feet
Usage: Flowering
Shipped As: Bare-root
Planting Zones: 3-9
Product Details
Buy Blue Hydrangea Plants Online Wholesale - Hydrangea macrophylla
The Nikko Blue Hydrangea plants are a beautiful bush that has beautiful flowers. This plant is great for accenting a garden, lining a wall, or being used as a partition. You can change the color of the bloom. If you add aluminum sulfate, you will have a deep azure. If you add lime, you will get a darker pink. It is one of the few flowers whose color can change with help.
Nikko Blue Hydrangea Plants Can Reach 6 Feet Tall
Scientific Name: macrophylla
U.S.D.A. Climate Zone: five through nine. Only winter hardy to zone 6
Bush Height: four to six feet tall
Soil Type: Acidic soil creates deep azure blooms. Alkaline soil creates light azure or even pink blooms.
Sun: Full to half shade
This shrub blooms in early summer. It must be deeply watered, especially during dry weather and when the flowers bloom.
If you take off the dead bulbs, they will grow more. One nice thing about the shrubs is that you can cut them and dry them straight in a vase when the blooms are full. They keep for several years and can be a lovely accent in a room in your house.
Plant Description
This stunning shrub grows its clusters in semi-shaded areas. The vibrant azure flowers bloom with handsome green foliage, usually on old wood.
Sometimes, these deciduous flowers bloom with a pink, purple, or white hue instead of azure.
It Is Fast-Growing And Easy To Care For
While many people might consider this plant a "showy" plant, that does not make it any less beautiful. This is relatively fast-growing and easy to maintain, with its best bloom time in late spring or early summer.
Water plan regularly to keep the soil moist (i.e., a couple of times a week). Good companion plants include Holly, Rose of Sharon, Azaleas, and Sweetspires.
If left to its own devices, this native Japanese plant can quickly reach four to six feet tall and wide. It typically grows at a rate of approximately 24 inches per year.
Soil and Water
This plant likes moist soil that drains well. The most crucial factor to consider is the soil's acidity, or lack thereof, which ultimately plays a significant role in determining bloom color.
More acidic soil produces that vibrant azure color, but pink appears with more alkaline mixtures. You can raise acidity by adding sphagnum peat moss or nitrogen fertilizer to the soil.
Conditions for Temperature and Humidity
Some can grow fully in temperatures as low as 32 degrees Fahrenheit. That said, newer, younger plants must be grown in temperatures lower than 35 to 40 degrees Fahrenheit.
This Shrub Loves High Humidity
These plants generally like mid to high humidity at any age and grow particularly well in summer. A too-dry climate, like that in a desert, can cause the plant to wither and droop.
Details on Pruning
This plant requires very little pruning. If you need to prune or cut your plant back, plan to do so before early fall and late summer to avoid cutting set buds or blooms.
Cutting set buds could mean you don't grow flowers the following year. Dead branches, however, can be trimmed at any time.
How To Take Care Of This Particular Plant
The Shrub can become infested with aphids or scales, spreading quickly around your garden or landscaping. Treat your Shrub with a mind insecticide at the first sign of either issue. You could also use neem oil. Apart from these issues, there is nothing else you need to worry about.
Let’s talk about this Shrub—it’s probably the most iconic of all. It falls into the family of bigleaf hydrangeas, instantly recognizable thanks to its classic mophead hydrangea shape. And, of course, everyone wants those vibrant blue hydrangea flowers!
Here’s the thing about placement: you really want to aim for morning sun followed by afternoon shade. That’s the sweet spot for the best color intensity. While it can take full sun if you live somewhere cool, the partial shade is what keeps the foliage and blooms looking lush.
It’s important to note how different it is from the others. It's not like smooth hydrangeas, oakleaf hydrangeas, or even the upright panicle hydrangeas—the Nikko Blue Hydrangea stands alone for that bold blue tone and provides reliable, season-long interest in any garden space.
