/ˈjæroʊ/ (botanical name Achillea)
Traditional border flowers valued for their feathery foliage and striking flat, circular heads of flowers throughout the main summer season, often as late as November. They team well with other perennial flowers and are a vital ingredient of a traditional herbaceous border. Attractive to bees, the blooms also are good for cutting or drying. Plants spread slowly into fat clumps without becoming invasive.