It is a Summit cherry tree, planted one month ago in a container. Recently most of its leaves and sprouts became droopy and it also has fewer leaves compared 2 other cherry trees planted around the same time.
I've checked the soil and top 2 inches were moist. For the one with drooped leaves, it was pruned 3 times before it sprouted since I have little experience in pruning fruit trees. The other two though was pruned in one go.
I have no idea what happened and what should I do to save the tree. Friends pls help. Thanks