Don't give up on doing what you're doing. Mitzi doesn't like to go in the grass either and does her business only on concrete. Maybe the grass bothers her on her you know what. When I came into her live she was already 4 y.o. and wasn't potty trained. Now we have a "schedule" and I'm watching her closely so we have no more accidents any more (almost... I don't wanna jinx it!)
