Posted: 13/09/2015 at 19:22
They're natives of Chile where they grow at very high altitude and have been around for a very long time so they should be hardy enough here Voyager! They look like terrific little plants so I can understand why you're keen to help them as much as you can. They look well sheltered tucked in at your wall, but perhaps some fleece in the coldest, wettest, winter weather if you feel unsure. I wouldn't think they'd need anything more, but I'm sure someone will correct me if I'm wrong.
I love them although I know they divide people in a Marmite way