Achillea millefolium 39summer pastels39has aromatic foliage and large flat flower heads in interesting pastel shades which will create a wonderful tapestry of summer colour it is a tough and reliable yarrow which thrives on light sandy soils and copes well with coastal conditions it is also perfect for cottage gardens and prairie planting as it is perfect alongside swaying grasses a resilient hardy perennial that attracts pollinating insect it also makes a lovely informal cut flow