Killing grass for good
Hello all! I'm hoping you can help me with a little issue, on both sides of our house between our fence and the house (about 5-7 feet wide, 10-14 feet long) we have river rock laid down. I'm assuming it was put down by past owners so they didn't have to mow back there, problem is is that grass keeps growing up through the rock. I've tried a few grass killers from the garden section mixed more concentrated than they require, and also straight bleach with no success. The bleach seems to dry it all out, but after a few days it looks just fine again.
Any suggestions to get rid of it for good/for a year or so? I'd like to nip it in the bud when there is only a few spots of it coming up.