When should Wei Zi bonsai be changed? I just bought a pot of Wei Zi and need to change it. When is the right time to change the pot?

The clods around the roots should be preserved. When changing pots, be careful not to hurt the roots. The purpose of knocking around the original pot is to loosen the original soil and pot. It should be taken out, because the plant has been growing for five years, and it should be replaced with a pot larger than the original one. Lay tiles on the drain (inside) at the bottom of the pot, lay a layer of new soil, and transplant banyan trees with clods.