Yarrow or Achillea millefolium is a reliable but kinda plain-Jane flower that’s easy to take for granted. That is, until you notice it used skillfully – as I did in the garden of U.S. landscape designer Barbara Katz on the 2017 Garden Bloggers Fling. Wow, I thought, looking at the vignette above, Great colour echo between the Echinacea and coleus. And, oh. […]