You have to harvest them in the fall lke potatoes or sweet potatoes.Happy gardening!! bellie

OK, and how would that be? Do you let the foliage die (from frost) and how long do you leave them in the ground?

If your climate is right, I think you can harvest any time, as long as the tuber is large enough. Growing taro for harvesting leaves is different than growing taro for harvesting tubers. Don't take leaves from plants you are growing for tubers. And on plants you grow to eat the leaves, you only want to take about the 2nd or 3rd leaves from the center. The older ones don't taste as good.

If you harvest a tuber, you can still replant the top to grow another plant. Here's how... You leave the stems attached to the tuber, but cut off the leaves. You leave about the top half inch of tuber attached to the stems, kind of like cutting off a carrot top and leaving the carrot 'shoulders' attached. You then allow the cut surface on the tuber to dry and form a skin for a few days. You can then replant the top and stems, and it will sprout new plants.
With the tuber you have left for eating, you peel it, quarter it, and cook til tender in salted water. Wear gloves while handling to avoid the oxalate crystals from irritating your hands.

Oh, I know! I have to peel them under running water to keep my hands from getting ichy. And if you hold them the right way, only letting them touch the thicker skin on the inside of your hand, it's not as bad. Although gloves would be easier : )

They were selling some red taro stems at the market and I saw that they included the top of the corm so I planted them and now I have some unknown variety growing with bright crimson stems (that I'm guessing are edible).

You wouldn't happen to know what variety or kind they are?