Bougainvillea pruning is mostly selected in spring, when the plant begins to grow, pruning is more conducive to recovery, but also can reduce nutrient consumption, which is helpful for plant flowering.If the pruning time is too late, it will delay its growth time, thus affecting plant development.
1. Short clipping: If the growth of Bougainvillea spectabilis is relatively slow, the new shoot development can be stimulated by short clipping.This method is generally aimed at new branches, divided into light and heavy cutting, light cutting to cut off about one third, heavy cutting to cut off half.Usually, the cut should be close to the position of the bud, so that the stimulation effect is better.In addition, short pruning can also avoid the thickening of mother branches.
2. Thinning: If the Bougainvillea is too dense, the intersecting branches block ventilation and light transmission, which is not conducive to internal growth, and there is a risk of causing pests and diseases, so thinning is needed.This method is mainly to cut off dense branches, overlapping branches and so on, so that the inside can also be illuminated, and there is good air circulation.At the same time, weak branches should be removed to promote the growth of plants.
3. Shearing: If the old branches of Bougainvillea do not bloom very well, it is necessary to consider shearing.If the strong branch is retained, although it has the effect of rejuvenation, it does not leave flowering, but the weak branch is different, it consumes little nutrients, so it has enough nutrients to help flowering.In addition, the shrinkage can not be cut all at one time, but several times separately.
After pruning the Bougainvillea, apply carbendazim to the wound to prevent bacterial infection and disease.At the same time, attention should be paid to fertilization to supplement nutrients, which is conducive to the growth of new shoots.
