overwintering in zone 7 Maryland
I had Cannas back in Ohio (lived there until '07) and usually just grew them in containers.
I see them in the ground all over here. I've heard mixed reviews on whether or not they overwinter in the ground.
I have concerns about even trying that:
1. Our soil is clayish, and usually saturated muck all winter. This year, it was frozen muck.
2. I can't help but think even if the rhizomes survive, it will take forever for them to bloom due to soil temperatures in early spring.
3. This year, the ground actually froze to a depth of a few inches or more. Many years it doesn't freeze maybe more than an inch max, and that's only occasionally.
Is it worthwhile to try to overwinter, or do you have better results lifting and then starting indoors to transplant outside?
Storing is another thing - I have a modern, heated home, I don't have anywhere that is "dry and between 45 and 60 degrees" in my home. Either the fridge (too cold) or anywhere in the house (too warm).