Outside Ideas
Pull as many weeds as possible. You aren't going to get everything with one go, but pull as much as you can in an hour or two. Cardboard and mulch. Lay thick layers of cardboard on top of all the areas that you want to replant. In this case, it was a pathway through the middle of the large plants, cutting out all those white circled weeds. Top the cardboard with a very thick layer of mulch, 6 to 8 inches of wood chips or leaves. Plant sedum.
curved path and color of plants are great!
Q