From what I see taken from the link below, anytime now would be fine.

When the foliage starts to die back (turn brown) reduce watering. If a frost blackens the foliage, cut the stem down to 6â³, dig up the tuber and remove excess soil. Air dry to "cure" the tubers out of direct sunlight at 60 degrees for three weeks.

Sue

Here is a link that might be useful: Winterize Elephant Ear.

Thank you Sue that must be where I went wrong last fall with my Caladium I dryed them on a table on the deck in full light etc.After curing do you recommend peat for storage ?

After curing do you recommend peat for storage ?

My neighbor who has had them for years, has sometimes used peat, sawdust, and sometimes nothing and they have always been fine. She stores them in an unheated room that does not get down to freezing.

Sue

Would "Aquatic Elephant Ear" otherwise known as Black Magic Taro be the same? I have to take mine out of my pond for the winter and am wondering if I should do the same thing