First, pruning method 1, short cut: cut off a long branch. If half or 1/3 is cut off as a heavy short cut, it will stimulate the next bud and promote the new branch to grow faster.

2. Thinning: Thinning too dense branches is beneficial to the growth of cut branches and buds, and can increase internal illumination.

3. Branch pruning shears: Cutting off branches that have been growing for many years can make old trees thrive again.

Second, properly cut the bougainvillea. You can't just cut it, but cut it to the right height and length. The direction and spacing of cutting buds determine the quality and growth of new shoots. The appropriate incision can be flat or oblique, which can leave enough space for the growth of buds, but be careful that the incision should not be too far away from the cut buds, leaving too many branches to consume nutrition, and the cut surface should not be too inclined.

Third, the precautions can be pruned in one flowering period. Carry out a strict logging in March-April in spring; After the first branch grows tall in about 20 days, the second pruning is carried out; The third time shall not exceed the middle of August at the latest.

The purpose of pruning branches is to cut out layers, so that all branches are exposed to light, so the vertical downward branches and cross branches should be removed; Parallel branches can remove weaker branches; After the flowering period, too dense branches, long branches and weak branches will be thinned.