I stupidly accepted some iris runners from a friend at work. I thought they would look good near my house, the fire ants thought so too! I have dug them up 3 times so far, and gotten numerous ant bites, only to find them to return the following year! How do I get rid of these things for good!!! The flowers are not attractive and they have a tendency to just lay down. Also would elephant ears do the same thing, stay in a clump and lay down?