Formerly M. dianica 'Snowbird', even more formerly Michelia yunnanensis 'Snowbird'

Want to move 3' tall, 5 year-old shrub. I'd appreciate thoughts on when, how, things to watch out for. If I don't move it, this lovely lady will be living behind the compost bin, hidden from view & from sun.

Currently quite healthy & lusciously flowering it's little heart out.

Thanks, as always.