OK. Exactly how much water can these elephant ears drink when in a nice big well draining pot?! Right now the one I have is in an 18 inch pot and is easily drinking 3 gallons a day. This is in addition to the steady rainfall we have been getting all spring and summer here in Eastern Tennessee. Got three more coming from Brian's Botanicals this week. The one I have was planted from a bag of shade plant bulbs my wife pickup up at Costco. It's growing like a weed and all the new leaves are bigger than the last.