Change In Wildflower Design

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...

The spaces between the edging are mowable widths...

And nice walkable paths...

I finished the digging of the trench to set the edging down in for the farthest back part today.  It was exhausting.  The trench had to be edged with a garden fork to get through the stones or regular spade where the soil was stone-free, loosened in the center with a heavy pick, and loose soil removed with a trenching shovel.

And I'm only 2/5ths done! 

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?