There are four main pruning methods for bougainvillea, namely modeling pruning, light pruning, moderate pruning and heavy pruning, which can control the growth rate of its branches and maintain its good shape. At the same time, it can reduce the consumption of nutrients and concentrate the branches needed for nutrient supply. Modeling pruning and re-pruning are mainly carried out in March-April and August-10. The rest of the time, as long as it is in the growth period, it can be lightly to moderately pruned.

Detailed explanation of bougainvillea pruning: 1. Re-pruning during modeling:

In the pruning method of bougainvillea, retraction pruning is to keep the bougainvillea in good plant shape. The main thing is to cut off the thick branches on the stem, and there is no need to keep the thick branches that still affect the appearance. The method of re-shearing is generally to break at the position where the base is connected with the trunk. The wound should be sealed with healing agent.

2. Light pruning:

Light pruning is called "after-flower pruning". After flowering, the bougainvillea branches will have some shape changes. Generally, the modeling clouds on the branches are lightly pruned, and the pruning degree is relatively small, mainly pruning residual flowers and pedicels, as well as bougainvillea twigs, thinner branches and withered branches affected by pests and diseases, so that there are more lateral buds on the modeling branches and the crown width of the clouds is more compact. Make it as long as the branches of the previous shape, so as to make the crown of bougainvillea more beautiful and have enough room for growth.

Step 3 trim moderately

Moderate pruning is a daily pruning method. When bougainvillea bougainvillea branches grow too fast, it will flourish. And some modeling branches are deformed, or branches have been stored in the upper layer at a transitional ratio. Then you can take moderate pruning and cut off the branches. This trimming is usually combined with styling trimming. Moderate pruning can reduce the consumption of nutrients and concentrate nutrients on the branches retained during modeling.

Step 4 re-cut

There is also a special way to trim the shape, that is, re-trimming, which we call "cutting off dwarfing" to put a large bougainvillea stump in the form of desired modeling outline. Cut it directly from the trunk, reduce the overall height to the height we need, and then store the branches. Re-cutting can be performed when transplantation is in progress or when growth reaches its peak.

Matters needing attention in bougainvillea pruning: (1), pruning time:

Modeling pruning and re-pruning are mainly carried out in March-April and August-10. Large wounds can occur when styling is trimmed and a lot of trimming is done. Pruning in the vigorous growth period will make the wound heal easily and reduce the chance of bacterial infection. The rest of the time, as long as the temperature is not lower than 65438 05℃ and not higher than 32℃, you can carry out mild to moderate pruning. Both kinds of pruning should avoid the rainy season.

(2) Preparation before pruning:

When pruning bougainvillea, thin fertilizer can be applied once every 10 day, water is limited after one week, and pruning can be carried out when the leaves wilt. When pruning is heavy, the branch scissors should be sharp, and a utility knife should be prepared to trim the wound smoothly without burr. It is necessary to prepare a wound healing agent and apply it to a large area wound to increase the healing ability of the wound and reduce the chance of wound infection.

(3) Management after pruning:

1, after heavy pruning, the buds can replenish the water and nutrients of bougainvillea in time, and can be watered the next day after heavy pruning. On the third day, thin fertilizer can be used to supplement nutrition and accelerate wound healing.

2, light and moderate pruning, pay attention to avoid the rain period pruning, and continue to limit water after pruning, wait until the bud point appears, according to the different purposes of our pruning, fertilization.

A, in order to promote bud full crown, nitrogen-containing urea should be used in time.

B, for the purpose of modeling, continue to limit water and not apply fertilizer to avoid excessive growth of branches and leaves.

C, for the purpose of flowering, continuously limit water, apply organic fertilizer, and use "potassium dihydrogen phosphate" to promote flowering.

Conclusion: Pruning bougainvillea should adopt different pruning time, pruning methods and different pruning management modes according to different pruning purposes. Trim moderately and lightly, pay attention to avoid the rainy season, and the temperature can be within the range of 18 to 32 degrees Celsius. When cutting again, we must wait until the peak growth period to reach the best time.