Hi all. I have a marginal plant ,janus inflexus and was wondering about if I should do any maintenance. From what I read they do not benefit from pruning and the tops of stems turn brown. I have pulled out all the dead stems but there are a lot which are roughly green 2/3 rds up and the last 1/3 is brown (dead). Should I leave it or just prune off the top dead parts. Thank you
