@Newtochicks2016 Nice call on climbing roses! that would be beautiful on a chicken run, I just ordered and am waiting to plant some jiaogulan, also known as immortality herb, it makes a nice tea for people so I think it will be safe for chickens. I'm hoping it will climb up the side of the run, and kind of cover the top a bit, like a secret garden for chickens!
Non-Poisonous & Chicken Proof Plants - Page 5
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Just for Info ... Not sure if Wisteria is poisionous, usually animals are pretty smart about what not to eat ... but if not controlled with lots pruning, etc. Wisteria will take over the coop, your house, the neighbors house... check them out to see if a Wisteria is right for you in that regards as well !