Dryad's Prison

You attempt to turn one Medium or Small creature that you can see within range into a tree. They must succeed on a Dexterity saving throw or have roots tangle around their feet, restraining them. At the start of their next turn, they must make a Wisdom saving throw. On a success, the spell ends, and they are freed. On a failure, the roots lock into their feet, and their full body is encased in a tree that takes root on their space. They are incapacitated, and do not need to eat, drink, or breathe as long as they are in the tree.