Damp (not wet) sand in a root cellar or similar cool/damp place for long term storage. Bottom of the fridge in a drawer that gets decent humidity (unwrapped) for storage over a few weeks. That said, if you're willing to put up with some level of acceptable loss many people keep them around in a cool/dark place over the winter and manage to hold onto them without any special care. That's a dice roll, though.

Carol, Canna rhizomes are sold naked and I've seen more than one plant sprouting from a bag on the shelf of a store. Even with growth, Canna are tough. Simplest thing to do is find a bucket, toss them all in (rhizome first), and put just a little bit of water into the bottom of the bucket. All the Canna should be fine. If you're worried about rot (I wouldn't be) you can fill/empty/fill the bottom of the bucket once a day. Worst case scenario is the plants dry out a bit and you get a brown leaf or two, something each Canna will quickly outgrow. I emptied my tropical bed going into a cold front. buckets had some water in them, but the Canna weren't rebedded for 4 days with temps dropping into the mid 40's. Just keep them out of direct sun while they're awaiting the cleanup.

chsanc2., I live in Massachsetts. It would be nice if we did get together....If I fail with storage on these. I have no problem growing these things perfectly while growing outside. I started cutting last winter. Then after the winter and pulling them out again, I fed them according to the grower I bought them from "dynamite". I only fed two. I was scared to give anything really since they were from cuttings. The two from cuttings grew inflos that I fed dynamite too, the others just big beautiful leaves. So this will be my first winter storing them away from the start to finish. That is rooted ones. I just talked to the grower, and he said that many, get this, take all the soil off the roots and store them in a very dark place. They have no leaves, they are in the dark, therfore no need for any water,none. So I will try it as he suggested with a couple. He said if I loose them, then he will send me more. Nice man he was. He also said I could leave the others in the potted soil with no light, just do not water. And before I store them in the basement in dark, to make sure the soil is dry or roots will rot. Also he said to cut all the leaves off. He said the advantage to no light and no leaves is no tip rot, nor spidermites on leaves. In our area, if we grow them as tropicals all winter, they won't rest properly, and they will be invaded by mites...Hum Hope this helps everyone. I figured who knows best than a grower of plumeria for over 20 years. Almost sounds like you can winter them like bulbs ha. P.S. Important. He said contrary to what people think, do not spray the leaves with water while indoors. This brings the onset of mold spot if you have leaves, and tip rot. They get hot sun all summer while outdoors, therefore if the leaves get wet, no rot. But indoors not so. So be careful. So much for me activley growing them all winter. Off the leaves come, and into the dark...lol Dave in nova, you are so right. They need to be sprayed with insectiside before brought in and before storing away, even if you take all the leaves off, so that when the new leaves start to grow in spring, there are no mites eggs to hatch and feast on anything. Hope everyone here is learning...Mike

Are you going to store it outside (in a cover) or inside (like in a closet)?