I may have to change my overwintering strategy since the cannas from last year never came up either. I stored them in some dirt in a cardboard box in the attic...I think it may have been a little too cold. Next year, the basement, against an internal wall; wrapped in newspaper.

I am assuming that they were firm. If all of them had no eyes, I am assuming that the stems were cut off the tubers and then the tubers stored. A number of novice gardeners do this. I had a nice lady who presented me with a bag of tubers that she had "cleaned up" for me. She had indeed cut off the stems, and unfortunately had cut off area where the potential eyes would develop. All of them were useless, and none of them grew in spite of my best efforts. I always leave about 2 inches of the stem on the tuber when preparing for winter. That way, I know which end to look for eyes, and also I know that end is where the eyes will develop.

I do not store in dirt. If the dirt is damp, the tubers will rot. If the dirt is dry, the soil can deplete the moisture from the tuber, depending upon the consistency of the soil. There are a number of ways of storing tubers, and quite a few postings as to how to do it here on this forum. In the fall, I am sure there will be many more. Keep your eyes open for them ( Pun intended LOL)

Enjoy the dahlias you have now. Aren't they wonderful? Any pictures?

Mine have started to bloom. Alas, I left my camera at my son's place in Toronto, and it is a good hour away. When I get it back, I'll post some photos.

I am glad on I learned on a cheap and easily (re)obtainable tuber. I never grew them before so this was a learning exercise. Thanks for the info. Now to focus my energy on the dahlias I planted already that are viable.