Plants that are often
called "perennials" are, in fact, usually
herbaceous perennials. Perennial
because their life cycle takes more than two
years to complete and herbaceous because
they do not form woody stems.
Of course, as with much of horticulture,
there are always some
terminology twists. Some of the plants
commonly used in perennial beds such as
lavender or candytuft which form
"semi-woody" stems that are capable of
surviving the winter. Bulbs are also
perennials although they are usually kept in
a category of their own.
Our index of commonly grown
contains many of those used in the home landscape in
the temperate regions of North America.