transplanting crape myrtles redux
I have two crape myrtles that require transplanting for a sunnier exposure. (I've searched various forums in GW and read widely different opinions. Am interested in the current thinking on the subject.) : )
I bought the two in containers and planted last fall. Both are doing well: 'Tonto' has grown to 4' with a 3' width (canopy); 'Catawba' is 6' x 4'.
1. When is the best time to transplant? (I'm not concerned with any additional watering needs or loss of flowers if I transplant now. My only interest lies in the health of the plants: I don't want to stress them.)
2. How far should I expect the roots to have extended?
3. How much of these roots do I need to retain when I transplant? IOW, how large of a root ball should I expect to have to dig when moving them? (How far out from the trunk and how deep?)
4. I've read suggestions about root pruning the trees in preparation for transplanting. Is this advisable? If so, I'd be most appreciative if some of you would walk me through the specific steps of this procedure.
Truth be told, I'd be equally appreciative for any help about any facet of transplanting crape myrtles.