http://www.agnr.umd.edu/users/cmrec/art4.htm
You can search on individual species of other plants all over the Internet.
On Mon, 22 Sep 2003 19:01:50 GMT, "Lauren - Graphic Works"
opined:
I have several varieties of Hydrangeas. Do I cut them back? If so, when and
how much. The same question goes for Scabiosas and Clematis.