Absolutely. Mini greenhouses like this top-rated Vivosun model available on Amazon make ideal compact storage areas for hardy seedlings, cuttings and perennials.
Zip them closed when it gets very cold and cover them with a blanket in the harshest weather. Remember to unzip when the temperature rises to keep plants well ventilated.
Make sure they are anchored to a wall, fence or the ground so they don’t blow over in winter storms.