Common yarrow, or Achillea millefolium as it is known botanically, is instantly recognisable for its tight, flat topped clusters of tiny blooms. Sitting on top of tall stems above soft, fernlike ...

Yarrow (Achillea millefolium), a plucky plant that people all over the world have used for thousands of years for its medicinal benefits, tempts many gardeners to include it in their landscapes. But ...