I read your article and several others on how to kill grass naturally. I want to put in a patio and flower bed before it gets too warm. I have an old tarp to use for killing the grass. How soon do I need to put that on? Also, once the grass is dead, will it pull up easily or will I still need to dig it up? We have very thick, aggressive zoysia.
Certified GKH Gardening Expert
You can put the tarp down at any time, even after the grass has started to come out of dormancy. The lack of light will kill it.
Yes, you will need to dig it up and if it is an aggressive grass, it could be hard. You may want to check with your local hardware store. Sometimes they have tools for rent that can help with pulling the grass up.