How can you get rid of elephant ears?

I planted elephant ears in my backyard last year and now they're popping up everywhere! I'd prefer not to put holes throughout my lawn. What's the best way to get rid of them or stop them from spreading?

How can you get rid of elephant ears?
chop them down and dig up all the bulbs, no more elephant ears
Reply:Dig them up %26amp; give them to me!!! Just dig down to the bulb(in northern climates we have to dig up every fall %26amp; replant next spring). Get all the bulbs they won't come back.
Reply:Since you are going to have to dig up the bulbs, please let me know if you are willing to ship them. I would be interested.