Achillea or yarrow is a group of
garden perennials that produce large flat heads of flowers on
"corymbs" 3 to 5 inches across or more each of which is many
of a few dozen individual small flowers.
They grow around 18-36 inches tall
depending on variety and are a valuable inclusion in a mixed border. The
varieties that are closer to the species types tend to have yellow or
golden flowers, though in recent years new cultivars have been developed
that produce pastel colors.
The foliage is aromatic, though could aggravate
skin allergies in those susceptible.
They are tolerant of a wide range of
positions and of soil, though they are happiest in full sun and don't
like wet or waterlogged soils.
Propagation is by seed or division of
plants in spring or fall. Older plants should be divided to maintain
vigor as there are some types which are otherwise quite short-lived.
Aphids may take a liking to your Achillea
and so may powdery mildew, so be on the lookout for these
