overwintering calla lilly bulbs
Last spring someone brought me a pot of very pretty calla lillies. When they finished blooming and the leaves had dried off, I put the bulbs in the soil in our front garden. I was surprised that they soon started growing healthy leaves again , but no flowers.
I somehow thought I could leave the bulbs in the soil,like tulip bulbs,but someone told me that it is too cold here in Toronto to do this. Can I leave them in, or should I take the bulbs out? When would I need to do this, and where would I store them, perhaps in the garage?
Help in this respect would be greatly appreciated.
Thanks in advance.