I was looking at the 2 areas I was surrounding by inset edging, and realized an error. I had intended the Lachymistra Firecracker, a very pretty purple-leaf and yellow-flower plant, to be enclosed in a small area I could mow around and prevent from spreading.
But I laid out 2 large areas. OOPS! So I had 5 40' lengths of edging; 3 in one shape and 2 in a circle. Time to change that. I changed things to a 40' circumference circle for the Lachymistra Firecracker; an 80' circumference circle for the transplanted Black-Eyed Susans, Purple Coneflowers, Dwarf Butterfly Bushes, Knockout Roses, and Goldenrods; and a kidney-bean shape of 80' circumference for the wildflower seeds and some local weeds with rather nice flowers (they may be volunteer Pinks from some other yard).
So now the edging looks like this...
But an hour a day gets things progressing. 3 more hours will do all the edging-trench digging, and who can't use more exercise?