Hi Joe,
They will grow just fine in pots. Don't give them too much water until the leaves start. Callas can have sprouts for a long time before they actually get growing. If you water them too much, to try and get them growing- they may rot.

You can also try growing them in the ground, they will be happiest with a lot of sun, but a little bit of shade.
Callas like full sun but cool roots- if you can figure out how to do that, you will succeed!

In the fall, once the leaves die back, you can take them out of the pots and dry them a bit. Knock or pull off the dead, dry roots and store dry in a cool spot, for ex. a basement.
Some people have also left them in pots over the winter but storing them dry works best for me.

You are right on the hardiness edge for Callas. If you plant them in the ground, they might come back next year. Personally I wouldn't take the chance- unless you only spent a few dollars and don't mind losing your flowers!

Good luck and enjoy- show us photos as you get them.
What varieties did you buy?
Susan

Hi, I just planted some callas in a pot, they looked beautiful for three days, now the leaves are wilting, and curling. They get full Florida sun from 9 am to 1:30 pm, and the dirt feels moist. I'm thinking, maybe I over did it with the water and I should let it dry out a little. I'm not sure, I absolutely love them, any advise would be greatly appreciated. Thank you.

Hi, I just planted some callas in a pot, they looked beautiful for three days, now the leaves are wilting, and curling. They get full Florida sun from 9 am to 1:30 pm, and the soil feels moist. I'm thinking, maybe I over did it with the water and I should let it dry out a little. I'm not sure, I absolutely love them, any advise would be greatly appreciated. Thank you.

I tried growing a Calla lily from a bulb I got in March. Nothing.. no sprout nothing at all. Is it the wrong time for it to start? I am keeping the soil cool as required.

Don't overdo it with the water- colored hybrids do not like their soil wet all the time (white Aethiopica do, though). Florida sun might be a little strong- try filtered shade, or dappled shade.

Cheetos,
Callas will grow when they are ready. How cool is your soil? Should be warmer than 70 degrees. Where do you have your calla? In the house? Outside? In the sun? shade?