Source for big plant pots?
I have quite a few 8" terracotta plant pots which I've been using for various veg and herbs. Most stuff seems fine in them, but I have several very large herb plants which have been given to me in cheap plastic pots that they are outgrowing. The oregano is the one which seems to need a bigger pot, but I don't think it will hurt the sage or parsley. I also have an olive tree which I think will probably need progressively bigger pots over the years.
Does anyone have any sources for big pots, preferably terracotta or ceramic, that wont break the bank? I got the 8" ones from The Range for a quid each, but their bigger sizes don't seem much cheaper than anywhere else really. I wouldn't mind something a bit more interesting looking but I know that's a lot to ask, otherwise I might be tempted to rig up a mould and make some out of concrete but that has the potential to go horribly wrong.