About Achillea filipendulina Lam.
Achillea filipendulina Lam. is a herbaceous perennial plant. It grows to 120 centimetres (4 feet) in height, and produces fern-like foliage. Its leaves are linear, pinnate, lobed and serrated, with a hairy, rough texture. Flowers are arranged in large, complex corymbs or panicles, often reaching 13 cm (5 inches) across. The smaller component corymbs are arched or convex, which gives the entire compound corymb an uneven surface. For the wild species, the small individual flowers are a rich 'old gold' yellow color, and are very rigid, almost hard. This species flowers from mid to late summer. It is native to central and southwestern Asia, specifically found in Kazakhstan, Afghanistan, Pakistan, Iran, Iraq, Turkey, and the Caucasus. It has also become naturalized in parts of Europe and North America. Achillea filipendulina is cultivated as a flowering ornamental plant in temperate regions. It can grow well in ordinary garden loam and many other soil types. It grows best in full sun, and is drought tolerant once it is fully established. It can be propagated by seed or by root division in spring. The original wild species has generally been replaced in cultivation by numerous improved cultivars, several of which have earned the Royal Horticultural Society's Award of Garden Merit.
