Question
I planted an impatien border.  Some of the plants are being eaten at the base of the plant.  I have put down snail killer but the problem continues. What else could be eating the plants?

Thanks

Answer
i'm in southern NJ. not many impatiens around here this time of the year outside.
it depends on where you live.
could be rabbits, chip munks, deer, and many other type critters. take a look at nite to see what is hanging around the yard. many animals feed at nite when you are sleeping.
have you ever had this problem before?
get to a local garden center/nursery and quiz them on a solution to your problem.
good luck
rick