This Cistus is very old and doesn't put on much growth yearly
By Meadowland
Monmouthshire ,
United Kingdom 
This very large Cistus (right of the green pole) is 15 years old and doesn't put on much growth yearly. I'm wondering if I should give it a very severe prune in November to rejuvenate it.Perhaps this would encourage more flowers.
21 Jun, 2021
Answers
I don't think they grow from old wood. I tried hard pruning one once and it died. It might be better to take cuttings and discard the old one.
21 Jun, 2021
i did that to mine and it died, though luckily i had taken a few cuttings first. So take some cuttings just in case.
21 Jun, 2021