Potted Petra survives SF bay area winter and two summers so far..

It and one other were looking good on my porch until March..then the wife for some reason "watered" them with gray water she had in a pail..it killed a Angel wing type that was in perfect condition and partially defoliated Petra. Petra I think got less of that polluted water.
Still,it after that it slowly and totally defoliated.
It didn't die but it took a good amount of the summer before it sprouted new leaves. Even then the foliage is only 2/3 rds the size of pre "poisoning"
So its hard to say if my experiment was successful. I would have liked to see how they did minus the bad water.
But,I think if you REALLY know plants,you can get them to take a winter here. At least on a porch..something most homes have anyways.

 

Wife is alive?

 

Close call,but yep.