Answer: Wait until they have finished blooming, then water deeply the day before the move. The roots should be concentrated directly beneath the branches and in about the top 12" of soil. Start digging at a point outside the longest branches and work your way in and down so that you get as much of the rootmass as possible. Once it is out of the ground cover the roots to keep them from drying out and then dig the new hole just as deep and as wide as the rootmass. Pop it into its new home (making sure it will be at the same soil level as it was before) and then water well to help settle the soil. Be sure to water deeply once each week to help the roots become established.
Best wishes with the move!
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