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How to trim and reshape bougainvillea bonsai?
Trimming and shaping of bougainvillea bonsai: bougainvillea grows rapidly, so attention should be paid to shaping and pruning during the growing period to promote the growth of lateral branches and more flowers. Pruning times are generally 1 ~ 3 times, which should not be too much, otherwise it will affect the flowering times. When the newly planted seedlings grow to 5-6 leaves, the terminal buds should be picked in time, and the lower 3-4 leaves should be kept; When the newly picked branches grow 5 ~ 6 leaves, they can be cored for the second time (that is, picking the terminal buds), and this can be repeated several times to form a full crown. Large plants that have blossomed can be pruned twice a year. The first time, combined with changing pots in early spring, the dense branches, slender branches and pest branches were cut off from the base, and the long branches contracted and the remaining branches were cut short.

The second time, after the flowers wither, the dead branches, weak branches and internal branches are thinned and cut off as appropriate. The top of the remaining branches should be cut off by 30 cm, and all the lateral branches should be shortened at the same time to promote more new branches to form more flower buds. Old plants with weak growth can be pruned again, that is, only 2 ~ 3 buds at the base of each big branch are reserved, and the rest are pruned to promote plant regeneration and rejuvenation.