During the early spring period the flowering varieties have expended their energy for spectacular shows of blooms. As the month passes begin the process of of pruning to restore the shapes of the trees and encourage next year s blooms. March and April activities should have developed basic tree outlines as you pinched new growth to contain these shapes. You will benefit from finer branch twiggyness and an overall healthier foliage mass. Newly repotted spring material is now be substantially established.
Growth shows in the form of internode extensions, new leaf formations and overall fullness.
These are all healthy signs, but, you must maintain the tree style and shape by continuous pinching back, thinning excess branches and shortening long internodes. Don t let the healthy growth mislead you. Your tree requires constant training. Bonsai is still a living art form. Check your root over rock plantings from last year.