Hi all, I'm saving to have a gardener come and give my garden a bit of an overhaul. I'm thinking of having a raised bed at the end of the garden (I'm not an avid gardener but like pottering about in the garden a bit). What are my options? I don't want a wooden one as I find any wood in contact with soil needs very regular treatments. I have tried Google searches but don't really know what I'm looking for. Budget - £200 ish.