Good morning - New to gardening and recently moved to a new apartment that allowed me to FINALLY have the space for a garden out on my deck. My "garden" is planted in 3 large raised planters on the 2nd floor. I'm curious what everyone suggests to store the soil for the winter - I live in zone 5b. I would like to try and reuse the soil next year. Hauling all of it upstairs this spring was not an easy task and I would like to avoid having to do it again. I realize I may have to add a few new bags but it took approx 20 large bags to fill them. Thank you in advance!