Height 15 ~ 25m, dark chestnut brown and smooth bark.
Flowers are white or pink and bloom in April.
Varieties and varieties include double white cherry blossom, red and white cherry blossom, double red cherry blossom, magnificent cherry blossom, mountain cherry blossom and so on.
(2) Japanese late cherry: native to Japan.
Up to10m, with light gray bark.
Flowers are pink or nearly white, double or single, fragrant, and bloom in April.
The main cultivated varieties are Huwei Sakura, Full Moon Sakura, Four Seasons Sakura, Wan Li Fragrant Sakura, Peony Sakura, Jinlong Sakura, Guanshan Sakura, Royal Sakura and Chrysanthemum Sakura. (3) Early Japanese cherry blossoms: 5 meters high, with transverse bark and longitudinal split old bark.
Flowers are pink. They bloom before leaves in spring, and the flowering period is the earliest.
The main variety is October cherry, with flowering in April, 10; Early cherry blossoms have drooping branches, big branches and branchlets, and bloom in March.
(4) Dashan Sakura: native to Hokkaido, Japan.
12 ~ 20m high, chestnut brown and smooth bark. Flowers pink to light purplish red. The flowering period is from March to April.
Cherry blossoms like light, and they don't bloom well in cool or semi-cool places, or even at all.
It grows well in deep, fertile and well-drained soil, and is not tolerant to salt and alkali.
Hardy.
In the dry and air polluted environment, its life span is very short, and it is often prone to gummosis, dead branch disease and tobacco mildew. Cherry blossoms are axial branches, with wide tree posture, weak germination and strong branches, but weak wound healing ability.
Flower bud differentiation in summer and autumn.
Not resistant to pruning, whether planted in the ground or potted, it is best to keep the natural tree shape when pruning.
The modeling method of cherry blossoms is multi-tap trunk modeling.
The seedling stage is dry and generally grows naturally.
The plastic band is 60 ~ 100 cm, and more auxiliary branches are left during culture.
In the winter of 1 ~ 2, the strong buds of trunk or middle trunk were cut short continuously. In the next 2 ~ 3 years, leave 3 ~ 5 branches with good orientation above the plastic belt as skeleton branches, and choose more side branches to make the crown plump.
At this time, the stem has gradually lost its advantage, and the extension of the stem can be cut off, which usually takes 4 ~ 5 years to form.
Cherry blossoms grow well in 3 ~ 20 years after planting, and generally do not undergo major pruning.
Cherry blossoms have poor wound healing ability and are easy to fester, so there is little maintenance and pruning of cherry blossoms, but branches with diseases and pests, dead branches, overlapping branches, competitive branches and branches that grow too densely should be pruned every year.
If it is found that the growth potential of the main branch is weakened, the side branches close to the main branch should be cultivated in time to replace the main branch and continue to prolong the growth. These pruning measures can be carried out before germination in spring. If the cherry blossoms grow too vigorously and have too many buds, they can be thinned out to avoid the phenomenon of big and small years and affect the viewing effect.
Due to the poor cold resistance of some varieties, that is, the poor drought and wind resistance in early spring, the secondary branches and leaves should be pruned in autumn to prevent the third new branch growth, so as to lignify the branches, improve the cold resistance and thrive.
And cut off the sprouting tillers growing on the trunk or the base at any time to keep the trunk clean and beautiful. It is necessary to rejuvenate and prune cherry blossoms in old age.
Practice has proved that timely pruning can re-grow into a dense crown and prolong the life and ornamental years of cherry blossoms. The key is to grasp the pruning time.
Generally speaking, when the extension branch of the main branch basically stops growing and the inner branch begins to increase, it should shrink in time.
Under cutting, new branches can germinate and continue to grow upwards, and under artificial control, new crowns can be formed again.
This not only prolongs the life of cherry blossoms, but also improves the ornamental effect.
There is a saying in Japan that "it is a fool not to cut plum blossoms, but a fool to trim cherry blossoms".
Pruning cherry blossoms should be based on thinning and the principle of "early and small". Only when the wound is small can it be easily recovered.
All trimmed wounds must be treated with wound protectant.
When thinning branches, cut to the base, do not leave piles, it is easy to rot.