I am not sure what plants you have in your garden but there are many organic ways to get rid of weeds. I have used corn meal organic weed repellant. If you go to your local nursery, there are options you can ask about! The only situation that I couldn’t resolve was with my dymondia. Weeds grew within them and there was no way to kill the weeds without killing them. That was sad! So we had to hand pluck each weed out but of course, they came back.