rose flowers are actually a flat terminal corymbs of small 1/4" flowers
simple, dark green, finely divided giving them a fern-like texture and strongly aromatic larger basal leaves have long petioles, smaller upper leaves are sessile
spreads by rhizoms
1.5-2 feet, space 18 inches on center, mat-like growth habit
The flower stalks are weak and tend to flop. After flowering shear back the plants and they will form a dense mat of foliage. Plants are aggressive spreaders
easy by division
The species plant Common Yarrow (Achillea milefolium) is native to Europe and Western Asia and considered to be a weed in many areas.
The species plants have been in cultivation prior to 1440 and used as a herbal remedy for many aliments. The Greek name honors Achilles a warrior of the Trojan wars.
I have grown many different varieties of Achillea millefolium. There seems to be a few secrets to successfully growing them. Avoid rich, moist, poorly drained soils and plant in a full sun site. Also cut back hard after the bloom fades