Posted: 13/02/2013 at 21:44
Phygellius, I agree, is a spreader. I look at plants' root structures when Im doubtful of their tendencies. You get a good idea what they might do..often a suckering shoot goes deep to bottom of pot and you can see it wants to spread. Hope that makes sense!!!!! Another invasive plant is Rhus Tiphyna....stag horn sumac.....which will pop up several metres from its base.