Moving a cherry blossom

Hi
My sister in law has planted a cherry blossom nearly 2 years ago and wants to move it, it's just over 6ft high and hasn't spread our grown that much but is healthy looking, can I move in now our should I wait till leaves have dropped our wait till spring? Also hoe far out from tree should I dig to dig it out without cutting to many roots , as always thanks in advance

 

I would wait until it’s dormant so late Autumn, winter. The usual rule of thumb for tress is that the roots are as wide as the canopy. Cherries are quite shallow rooting so some initial investigations with a trowel should help give you an idea. There will be some individual roots which extend out further than the central root ball