Plant perennials such as achillea, campanulas, columbine, geranium and marguerites.    From Wordnik.com.  [SFGate: Top News Stories]

To the great suggestions thus far, I might add some of the better-behaved forms of achillea.    From Wordnik.com.  [The Lawn Experiment-Open To Suggestions « Fairegarden] Reference

Other perennials like buddleia, astilbe and achillea also work well in the colder seasons, he says.    From Wordnik.com. Reference

They are achillea flowers.    From Wordnik.com.  [A Summer Arrangement « Salt and Pepper.] Reference

Hubitat in achillea millcfolio.    From Wordnik.com.  [Caroli a Linné. Systema naturae per regna tria naturae : secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis] Reference

Yarrow achillea millefolium.    From Wordnik.com.  [Gentle Healing for Baby and Child] Reference