We have a redbud that we planted in the late summer/early fall. It had some growth on a lower branch before the winter. This spring it didn't do much, but now has some new growth near the ground. I think the trunk may be dead. We also planted a weeping willow which seems to be doing something similar. New growth near the bottom. Should we trim the trunks of these to encourage new growth? What can we do for our new trees? Thanks.