Posted: 03/11/2013 at 13:23
Hi Madeleine - I've just 'watched again' and I don't think they were plastic - think they were terracotta
Lots available out there, at all sorts of prices depending on how frost-resistent they are. I can't afford hundreds of pounds so I buy the cheaper ones knowing that if the weather gets very cold indeed I'll either have to bubble wrap them or risk them crumbling/cracking. Putting them up on little feet will help to guard against that happening.