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Tips | things you have to know about flower pruning

1. Why do flowers need pruning

The flower proverb "seven parts depend on management, three parts depend on cutting" is an important experience of flower cultivation. Pruning can not only make the flower branches evenly distributed, save nutrients, regulate the plant potential, control the excessive length, so as to make the flower plant shape neat and graceful, but more importantly, it is conducive to more flowering. Most flowers bloom on new branches. Only by constantly pruning old branches can they promote new branches, blossom more and bear more fruits. Pruning is generally divided into the following two types:

(1) pruning in dormancy period: thinning branches and short cutting. It should be carried out in early spring when SAP begins to flow and buds are about to sprout. If pruned too early, the wound is not easy to heal, and the buds germinate and the new shoots are easy to be damaged by freezing; If the pruning is too late, the new shoots will germinate and waste nutrients;

(2) pruning in growing period: it is mainly for regulating vegetative growth, including pinching, wiping bud, thinning flower, thinning fruit, cutting off overgrown branches, etc. During the growth period, it can be carried out at any time.

2. When is the general potted flower pruned?

Different types of flowers and trees have different pruning time. When pruning the flowers and trees mainly for flower watching, we should first master the flowering habits of different flowers and trees. If flowers bloom in spring, such as plum blossom, peach, jasmine, etc., flower buds are formed on the branches of the first year. Therefore, it is not suitable to prune in winter and before germination in early spring. Otherwise, the flower branches will be cut off. Pruning should be done within 1-2 weeks after flowering to promote the germination of new shoots and form the flower branches of the next year. If it is pruned in autumn and winter, the branches with flower buds will be damaged in summer, which will affect the flowering in the next year.

All flowers and trees that bloom on the branches of the same year, such as rose, Hibiscus rosa, poinsettia, hibiscus mutabilis, kumquat, Daidai, bergamot, etc., should be pruned in winter to promote more shoots, flowers and fruits. Generally, creeping woody flowers should be pruned in dormancy period or winter to keep neat, symmetrical and beautiful shape. Most of the straight flowers and trees were pruned during dormancy.

3. How to pick the heart?

Pinching is to pinch off (or cut off) the top of the main stem or lateral branches of flowers with fingers, so as to promote axillary bud germination or inhibit the excessive growth of branches, so as to make the plants grow strong, beautiful and increase the number of flowers.

Common herbaceous flowers, such as Salvia splendens, goldfish grass, five color pepper and Catharanthus roseus, can be toppled when the seedling is about 10 cm high after planting and survival, so as to promote more branches and flowers. For example, four seasons Begonia, upside down golden bell, chrysanthemum, etc., after the survival of seedlings, should be pinched to promote multiple lateral branches, rich plant shape, increase the number of flowers. However, it is not suitable for some flowers to be pinched, such as Impatiens balsamina, Celosia cristata and jiangxila.

Some woody flowers often change pots in spring or when the main branches grow vigorously, so as to speed up the formation of branches. For example, pomegranate, rose, plum, poinsettia, folium, Syringa, etc. can be topped many times according to the cultivation purpose and plant growth.

4. How to prune shrubs?

Shrubs in gardens can be divided into three categories: flower, fruit and branch. Different pruning methods should be adopted according to different ornamental purposes. The most common shrubs are jasmine, forsythia, Rosa, Bauhinia, Syringa, etc. their flower buds are formed on the branches of the first year, so pruning should be carried out after flowering in May and June.

In summer, pruning should focus on thinning and shaping branches, cutting off Cross branches, overgrown branches, dense branches, pest branches and dead branches to facilitate ventilation and light transmission and concentrate nutrients; The remaining branches after flowering can be cut short to promote its growth, so as to facilitate more flowering in the next year.

For shrubs that bloom in summer, such as rose, Hibiscus syriacus, wolfberry and Lagerstroemia indica, they bloom on the new shoots in the spring of that year, so pruning is carried out after the leaves fall in winter. Cut off over dense branches, dead branches and pest branches. Generally, the upper cut should be cut from the branch point at an angle of 45 ° and the cut should be smooth. 4-6 buds can be reserved on each branch, and the rest can be cut off.

Shrubs that can see both flowers and fruits, such as holly and honeysuckle, should be properly cut off some over dense branches and pest branches after flowering, so as to make them ventilated and transparent to facilitate fruiting. Some shrubs, such as redwood and Ditang, can be re cut every winter because they are mainly used to appreciate their bright young branches. The aboveground part is only 15 cm-20 cm, and the rest is cut off, so that they can germinate more new branches in the coming year.

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