Posted: 11/04/2013 at 21:13
I have a similar size pond and I bought my plants from www.puddleplants.co.uk they suggested I went for the native barrel collection http://www.puddleplants.co.uk/native-barrel-collection.html
I ordered my plants on Monday and I received them on the Wednesday by FedEx. If you are unsure on anything you can email them for advise. I put my plants in today and can't wait to see them mature.