Deutzia nikko is a plant that is native to Japan. It is a shrub that can grow to be about 3 meters tall. The leaves are oval shaped and the flowers are white.
Related plant:
Deutzia Crenata Nikko
Related plant:
Deutzia Chardonnay Pearls
About soil condition, Deutzia nikko prefers well-drained but moist, humus-rich soils. If the soil is too dry, the leaves will wilt and the flowers will not open properly. If the soil is too wet, the roots will rot.
Like the other plants, Deutzia Nikko requires a certain amount of sun exposure in order to grow and thrive. If you live in an area with high levels of sunlight, then this plant will do best in a shady spot. However, if you live in an area with more moderate sun exposure, then this plant can tolerate a sunny location.
The temperature condition for Deutzia Nikko is warm to hot. They can withstand some cold, but they will not tolerate excessive heat. They prefer full sun, but can tolerates some shade. They need well-drained soil that is moist, but not soggy.
Ideal humidity condition for this plant is 50%. This plant cannot tolerate extreme conditions, either too wet or too dry. The leaves may start to wilt if the humidity drops below 50%. If the humidity is too high, the leaves may start to yellow and drop off.
Discussing fertilizer, this plant does not need much, if any at all. A light top dressing of compost in early spring is all that is really needed. It is important not to overdo it, as too much fertilizer will cause the leaves to become excessively large and the stems to become weak and leggy. The roots of this plant are relatively shallow, so be careful not to damage them when working in the garden.
Pruning is an important part of caring for your Deutzia Nikko. It helps to promote new growth, keep the plant healthy, and control its size. When pruning, be sure to remove any dead or diseased branches. It is also a good idea to cut back any long, leggy branches. This will help to encourage new growth and keep the plant looking tidy.
Propagation of Deutzia nikko is best done through softwood cuttings taken in late spring or early summer. Cuttings should be taken from young, healthy growth that is just beginning to harden off. The cuttings should be 4-6 inches long and have at least 2 sets of leaves. Place the cuttings in a propagating tray or pot filled with moistened perlite or vermiculite. Keep the cuttings warm and moist, and in good light, but out of direct sun. Rooting should occur in 4-6 weeks. Once the cuttings have rooted, they can be transplanted into pots filled with a well-drained potting mix.
Usually, the plant growth rate during the spring and summer when the weather is warm and there is plenty of rainfall. However, if the conditions are too hot and dry, the plant's growth will slow down. In the fall, deutzias enter a period of dormancy in which their growth ceases entirely. If the winter is mild, the plant may resume growing, but if the temperatures are particularly cold, the deutzia may not survive.
Common problems for this kind of plant (plant) are root rot, powdery mildew, and stem canker. Root rot is caused by over-watering or poorly drained soils. Powdery mildew is a fungal disease that can be controlled with fungicides. Stem canker is a bacterial disease that can be controlled with antibiotics.
Source:
Deutzia gracilis 'Nikko' | Gardens
JC Raulston Arboretum - Our Plants - Deutzia 'Nikko Blush'
JC Raulston Arboretum - Our Plants - Deutzia gracilis 'Nikko Dawn'