I have 6 peach trees that I started from seed as an experiment. This is their third spring. They are about 3' tall. About a month ago my husband and I decided to prune them (not having a clue what we were doing but watched videos). They all had new growth and looked healthy. Now for some reason 1 looks awesome, 1 has leaves on half the branches, and 3 aren't leafing out or anything. We did have a late frost but either it didn't affect all the trees or something else happened. I'm baffled. They are all planted in the same area. Should I wait until next spring to see what happens or will they die since they didn't leaf out..... if they aren't already. Thanks!