By Stu
Cleveland,
United Kingdom 
When should I prune my tree peony. I was always under the impression that you don't prune them.
18 Jun, 2017
Answers
Mine get huge, I cut them back hard whenever they start getting in the way and they always come back, usually bigger and better. They are the species type (Paeonia lutea), the oriental hybrids are often grafted and probably shouldn't be treated like this!
18 Jun, 2017
More info here:
https://www.rhs.org.uk/advice/profile?PID=711
19 Jun, 2017
Many thanks. One of mine is about 5ft tall and is very gawky it needs a trim but I don't know the species type and I don't want to spoil it!
24 Jun, 2017
Previous question
« Does anyone know when to harvest the seed off my Euphorbia mellifera?
You don't normally unless there is a problem.
18 Jun, 2017