Oh boy. Mine have lots of growth. Hopefully it won't hurt them to cut them back now. Maybe I will do two of them to see then will know it will be okay for them. My MIL said to do that last year and I did. I only had two. And they died which is why I was afraid to try it again this year. How much water do you give them after cutting back? Or do you want til the send green growth. I just watered them fairly heavily last week. My instructions said to water them 'well' then let them dry out before watering again. I also put them in crockery pots as it said these tend to dry out more uniformly rather than drying out on top and leaving a soggy bottom layer.