No, you cannot move it now. Tree Peonies can be moved in the fall once the plant is dormant (ideally, after Labor Day). Moving it now will severely stress the plant and potentially kill it or retard it's growth such that it will take years to recover. In late August or early September, take a shovel and dig straight down at the outer leaf lines. Several weeks later, take a pitchfork and lever the plant out of the ground using this same margin. Take a water hose and clean off the roots of the plant (this will let you know how big of hole you will have to dig to replant). If any of the plant falls off and it has roots on it, plant it too. Fertilize in the fall, in the spring when new growth starts, and after blooming. It will do great. Been there and done that (with a TP that was at least 50 years old).
