BBC Gardening Message Board
   Access to a range of bulletin boards, covering house plants, garden design, pests and diseases, allotment tales.
   http://www.bbc.co.uk/dna/mbgardening

Kitchen Garden Forum
   Run by Kitchen Garden - monthly magazine devoted to vegetables, fruit and herbs.
   http://www.kitchengarden.co.uk/forum/

Real Gardeners UK
   Gardening community with discussion forums, diary, seed exchange, live chat room, and photograph albums.
   http://www.realgardeners.co.uk/

SussexGardener
   Email contact list and forum for professional gardeners, landscapers, growers, nurserymen, and student horticulturists in Sussex.
   http://groups.yahoo.com/group/SussexGardener/

The Organic-L list
   For organic gardeners
   http://www.steamradio.com/mailman/listinfo/organic-l

UK Plant and Seed Swap Forum
   Swap seeds, advice, tips and tricks.
   http://www.plantswap.co.uk

Yahoo! Groups - Kitchengardens
   For allotment and vegetable gardeners in the UK. Discussion has a distinct bias towards conditions, varieties and pests/diseases appropriate to the UK.
   http://groups.yahoo.com/group/kitchengardens/?yguid=55702599

uk.rec.gardening Home Page
   Guide to resources gathered by the indefatigable URGlers.
   http://www.tmac.clara.co.uk/urgring/