Welcome to ATP, Jenstagg67
Forsythia - (Others may offer different methods)
My original gardening teacher (when I was 7) told me to tie a 'twist tie' like from a bread bag (or colored yarn could be used) onto the base of each forsythia stem once a year - one color per year. Then in early Spring just after the plant finishes flowering, cut away the stems that have 3 twist ties - the oldest stems. It may sound tedious by with the fast pace of our lives today but adding the twist ties can be a very Zen thing to do.
