how and when should I prune lemon verbena
I have two new plants which have been growing in the greenhouse through summer. They have grown tall and leggy,
Lemon verbena responds to pruning by producing new leaves at the whorl immediately below the cut rather than along the entire stem. As a result, this shrub can grow leggy. It requires regular pruning throughout the year to increase leaf production. Snip off leggy stems just above a leaf whorl.