The Ultimate Guide To Nikko Blue Hydrangeas

The Ultimate Guide to Nikko Blue Hydrangeas

Nikko Blue hydrangeas are a popular choice for gardeners because of their beautiful blue flowers. These shrubs are relatively easy to care for and can be grown in a variety of climates.

In this guide, we will discuss everything you need to know about Nikko Blue hydrangeas, including:

• Their history and origins
• Their appearance and characteristics
• How to plant and care for them
• How to control their flower color
• Common problems and pests

History and Origins

Nikko Blue hydrangeas were first introduced in the early 1900s by a Japanese horticulturist named Masao Taki. They were named after the Nikko National Park in Japan, where they were originally found.

Nikko Blue hydrangeas are a type of macrophylla hydrangea. This means that they bloom on old wood, which means that the flower buds are formed the previous year. This makes them a bit more challenging to grow than some other types of hydrangeas, but they are also more long-lived.

Appearance and Characteristics

Nikko Blue hydrangeas are large, deciduous shrubs that can grow up to 6 feet tall and wide. They have dark green leaves that are oval-shaped and serrated. The flowers are large and showy, and they are typically blue in color. However, the flower color can vary depending on the pH of the soil. In alkaline soils, the flowers will be pink or purple.

Planting and Care

Nikko Blue hydrangeas should be planted in a location that receives partial shade. They prefer rich, moist soil that is well-drained. It is important to water them regularly, especially during the first year after planting.

To control the flower color, you can adjust the pH of the soil. If you want blue flowers, you will need to keep the soil acidic. You can do this by adding peat moss or sulfur to the soil. If you want pink or purple flowers, you will need to make the soil more alkaline. You can do this by adding lime to the soil.

Common Problems and Pests

Nikko Blue hydrangeas are relatively resistant to pests and diseases. However, they can be susceptible to leaf spot, powdery mildew, and aphids. If you notice any problems, you should treat them immediately.

Conclusion

Nikko Blue hydrangeas are beautiful and easy-to-care-for shrubs that can add a touch of elegance to any garden. With proper care, they will thrive for many years to come.

Nikko blue hydrangeas are one of the most popular varieties of hydrangeas, and for good reason. They are known for their large, blue flowers that bloom in the summer. But did you know that the color of Nikko blue hydrangeas can actually be changed?

The color of Nikko blue hydrangeas is determined by the pH of the soil. In acidic soil (pH below 6), the flowers will turn blue. In alkaline soil (pH above 7), the flowers will turn pink or even red.

If you want to grow Nikko blue hydrangeas in your garden, it is important to test the soil pH and adjust it accordingly. You can do this by using a soil test kit that you can buy at most garden centers.

Once you have adjusted the soil pH, you can plant your Nikko blue hydrangeas. They prefer full sun to partial shade and well-drained soil. With proper care, your Nikko blue hydrangeas will bloom for many years to come.

For more information about Nikko blue hydrangeas, please visit . This website has a wealth of information about this beautiful flower, including how to grow it, how to care for it, and how to change the color of the flowers.

FAQ of nikko blue hydrangea

1. What type of hydrangea is Nikko Blue?

Nikko Blue is a bigleaf hydrangea, which means that it has large, showy flowers that bloom in the summer. It is a deciduous shrub, which means that it loses its leaves in the fall.

2. How hardy is Nikko Blue hydrangea?

Nikko Blue hydrangea is hardy in zones 6-9. This means that it can tolerate cold winters and hot summers. However, it does not tolerate drought well, so it is important to water it regularly during the summer months.

3. What is the best way to care for Nikko Blue hydrangea?

Nikko Blue hydrangea needs full sun to partial shade and moist, well-drained soil. It is important to fertilize it in the spring and summer with a balanced fertilizer. You should also deadhead the flowers regularly to encourage new blooms.

4. How do I get my Nikko Blue hydrangea to bloom blue?

The color of Nikko Blue hydrangea flowers depends on the pH of the soil. In acidic soil, the flowers will be blue. In alkaline soil, the flowers will be pink. You can adjust the pH of the soil by adding sulfur to acidic soil or lime to alkaline soil.

5. What are some common pests and diseases that affect Nikko Blue hydrangea?

Some common pests that affect Nikko Blue hydrangea include aphids, scale, and Japanese beetles. Some common diseases that affect Nikko Blue hydrangea include leaf spot, powdery mildew, and rust. You can control pests and diseases with insecticidal soap, neem oil, or horticultural oil.

Image of nikko blue hydrangea

5 different images of "nikko blue hydrangea" from Pinterest:

1. Nikko Blue Hydrangea in Full Bloom

This image shows a large nikko blue hydrangea in full bloom. The flowers are a deep blue color and are arranged in large clusters. The leaves of the plant are a dark green color.

2. Nikko Blue Hydrangea in a Garden

This image shows a nikko blue hydrangea growing in a garden. The flowers are a light blue color and are surrounded by green leaves. The hydrangea is planted in a bed of flowers, including roses and lilies.

3. Nikko Blue Hydrangea in a Vase

This image shows a nikko blue hydrangea in a vase. The flowers are a deep blue color and are arranged in a loose bouquet. The hydrangea is surrounded by greenery, including ferns and baby's breath.

4. Nikko Blue Hydrangea in a Landscape

This image shows a nikko blue hydrangea in a landscape. The flowers are a light blue color and are surrounded by trees and shrubs. The hydrangea is planted in a sunny spot and is surrounded by flowers, including roses and lilies.

5. Close-up of Nikko Blue Hydrangea Flowers

This image shows a close-up of the flowers of a nikko blue hydrangea. The flowers are a deep blue color and are arranged in clusters. The individual flowers are small and delicate.