Answer: Spring and fall are the best times to plant or transplant trees, but you can transplant them now if they're in the way of construction. Mimosa trees like full sunshine and average but well draining soil. If the trees were recently planted, their root systems probably haven't grown much and they should be easy to uproot. Dig the planting holes first, then dig the trees and transplant them as quickly as possible so sun and dry air do not dry out the roots too much. Expect the roots to be in the top 8-10" of soil and within 10-12" of the trunk.
Water the trees well the day before the move and the soil will be easier to dig. Plus, the soil will cling to the root systems making the entire process less stressful on the trees. After planting them in their new spots (making sure they are planted at the same soil depth as before the move), water them in well to settle the soil.
Best wishes with the move!
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