Nine to eighteen inches.
Flowers of several colours, August to October.
A double-flowered plant closely related to the
A well-grown specimen of a good
strain of seed is a handsome thing and flowers
on well into the autumn; but a poor type is little
better than the too-familiar weed.
A good mixture
of seed will give flowers crimson, purple, pink,
reddish and white.
It should be sown in the open
ground in April (clumps in borders are most convenient
and well thinned out.
Unless crowded and over-shadowed,
the plants are stout and should not need support.