Do you have to get all of the grass up before you start to till a garden? Or can you just till over the grass?
Certified GKH Gardening Expert
You can actually go ahead and till the grass, provided it has not seeded. Then you could either treat the area after tilling with Round-up 2-3 weeks before planting the garden, or you could lay down some type of barrier, like landscape fabric or newspaper, to keep weeds out.