A couple of decades ago, hostas were
often described as "cast-iron" plants that could take
anything you threw at them and still be great in the
garden. Well, as the years have passed and hundreds of
thousands or millions of hostas have been planted across
the country, it became evident that they too have some
problems.
Here is a list of the things that
routinely bother hostas. Fortunately, many of them are
specific to particular types of hosts while others are
part of the environment in the shade.