I bought some potted cannas at the end of last season because they are cheaper then. (I know cheap b@stard) Anyway I left them outside until the first frost knocked them back then I put the dry pots inside of the garage. Even though my garage had no man door i.e. no light source the bulbs began to sprout a few weeks ago. My area is still having less than ideal temps to leave them outside and I plan to keep them in the garage until a week past last frost. My question is should I start to water them or wait?