Don`t worry,, that stuff is hard to kill. Just let it dry a bit between waterings. I have it everywhere in my yard. It will multiply. It will need a rest at the end of the growing season so cut all the leaves back to about two inches above the soil. leave it alone about two or three weeks with just minimal water. then it should start to grow again. You can tell when it starts to lay down and brown on the edges. Keep it in part shade if possible. Mine gets mowed down every year and keeps coming back year after year.