I recently purchased a Hakuro Nishiki Willow (tree) from a nearby nursery. When it was delivered I realized it had a set of new branches coming out of the base of the tree, that look way different from the leaves and branches at the top.
I've seen some grafts before, and was wondering if these are branches coming out of the graft rootstock? Should I prune these to help the grafted plant (scion?) grow healthier?