Inspect this bag once per week for rot. Remove any rot. Now begins the task of hardening off. Leave the pot in the bag with a fully opened bag for at least a week. Once the cutting is out of the bag water carefully and keep in the shade for the summer.
Cuttings often die in the winter from frost.
Protect by keeping under a tree. If a lot of the roots are outside the pot, bury the pot in soil to protect the roots from freezing. In spring, protect cuttings from snails. Unlike mature trees, one timely snail will snuff out your cutting, and all your hard work. Leave the cutting in the original pot for a year to develop strength.