"Jenny" wrote in message
...
Is there some web page that gives detailed information about which of
perennials and shrubs need to be cut back in fall and how to do it?

-- Jenny

Unfortunately, there is no single website I am aware of that will provide
this information. You can do a search on individual plants or look for "The
Well-Tended Perennial Garden" by Tracy Disabato-Aust for pretty detailed
care info on a wide assortment of common perennials. Most shrubs are not cut
back in fall. Early flowering shrubs like forsythia and lilac are pruned
immediately after they are done blooming and most other shrubs should be
trimmed or pruned in late winter just before budbreak or early spring as
they put on new growth. A good pruning manual will provide you with the
details on when and how for each individual shrub.

pam - gardengal