Theyre super stringy and produce minimal flowers. I have some in full sun, others in part sun and some in shade. Theyre all doing terrible and very "leggy". Does anyone have any advice? I live in zone 9
Prune your plant with a sharp pair of by-pass snips. Make your cuts just above but not into a leaf node. Consider the direction that the leaf node faces - into the plant or out. That is where your new growth will take place.