grass overtaking my garden
I used to have beautiful gardens. Over the years, I haven't been able to maintain them like I once did, and now have a lot of grass growing in my groupings of perennials. The main garden is 50' long and short of digging everything up... which I find overwhelming... is there any product on the market that will kill grass and not harm my plants.
Thank you, in advance, for any help you can give me.