I store all my rooted plants and cuttings in heavy, black plastic bags, and put the bags in a closet. I leave the bags open so that there can be a little air movement but limited movement. Since I have central air/heat, there is very little humidity in the house and thus the plants are exposed to little humidity. The only plant I have ever had a problem with is the Peduca, and these were small, rooted plants. They never came back in the spring. I think these stems are just too thin to overwinter for 4-5 months. I would guess that my plumeria lose 10-20% volume due to dehydration but when I repot the rooted ones, or root the cuttings in the spring, they quickly re-hydrate. I have followed this regimen for twenty years. I live in NE Mississippi.
