Agriculture and growing stuff

Elephant Ear (Taro)

Overwintering: When frost threatens, bring elephant ears indoors if you want to winter them as house plant. For best results provide a southern exposure and don't let the soil dry out.

As long as the plant continues to produce new leaves, apply a diluted liquid fertilizer (half strength). Your main difficulty with indoor culture will be supplying Colocasia with enough humidity.

In the spring be sure to harden it off (over a week gradually expose it to direct sun and wind) before putting it on the patio or planting it in the ground after your last frost.

Great info on elephant ears.
http://www.emilycompost.com/elephant_ear.htm

If you plan to let the plants go dormant, check this fact sheet on Storing Tender Bulbs and Bulblike Structures.