Achillea39coronation gold39 is a low maintenance and easy to growvariety which makes it understandablypopular it really is one of the best herbaceous perennials for a mixed border with eye45catchingflat flower heads of golden45yellow it has a longfloweringperiod over the summer achillea loves a hot sunny border and will reward your summer garden withcolourfor minimum effort quick to establish they are ideal for filling a gap in the border height 1m 40393441