How do I over-winter caladiums indoors?

Question:

How do I over-winter caladiums indoors?

Answer:

Carefully dig up the caladiums when the foliage begins to yellow with the onset of cool weather or wait until after the first frost.  After digging, place the plants in a cool, dry location for 1 to 2 weeks to cure.  After curing, cut off the dry foliage.  Place a layer of peat moss, vermiculite, or sawdust in a small cardboard box.  Lay the tubers on the storage medium, then cover with additional peat, vermiculite, or sawdust.  Store the caladiums in a cool (60 to 65 degree Fahrenheit), dry location.  

More information can be found in this article: How to Overwinter Tender Perennials