Astilbe's are attractive plants for
moist semi-shaded conditions. They are grown for their very
beautiful flower spikes made of hundreds of individual tiny blooms of
white, through a whole range of pink shades to deep red. Flowering time
is usually in early to mid summer and are of medium height from about 20
to 40 inches tall depending on the variety. Once over the flowers remain
as dry seed heads which can be left through the winter as they add shape
and interest to the garden at this time.
They also have attractive large leaves
which can reach a large size. Their preference for sun depends on the availability
of moisture. In fairly damp soils, they prefer partial shade, but if you
can supply them with a wet boggy position all year round they will grow
in full sun. They need year round moisture and will not tolerate soils
that dry out in summer, so sunny chalky soils are best avoided. Good on
clay soils.
