Anglian Gardener - Gardening in Anglia and the South East.  Advice, information, links and a forum.
Backyard Gardener - Information on all sorts of aspects of gardening.
Crocus - Garden news and features, jobs for the week, on-line shopping, planting plans and gardens to visit. A great new site.
Daisy's Cybergarden - A gardening site filled with links, tips, rose care guide, pond building guide & recycling tips.
earthly pursuits - Cultivating the gardens of the mind and spirit with an eclectic look at old-fashioned and new-fangled ideas about gardening and other earthly things. Books, old book library online includes 1945 Ministry of Agriculture Allotment and Garden Guides.
Flower and Garden Tips - Take a stroll round Flower and Garden Tips for practical solutions, inspiration and pots of support!
Garden Bed - Gardening tips, plant information, Q & A forum.
Garden Ideas - For gardening tools, everything from palm trees to roses.
Garden Resources - A wide range of garden related information ranging from plants to trees to operator manuals.
Gardener's Network - Online gardening community and stacks of information.
Gardener's Paradise - Useful information and gardening tips for both new and experienced gardeners alike.
Gardening For All Seasons - Guide to perfect gardening with articles and tips for seasoned and novice gardeners from planning to composting, your local weather, special features, house plants and Monthly gardening calendar. Recipes.
Garden Freebies - Lists free stuff for gardeners including free seeds, gardening catalogues and discounts.
Garden Seeker - Gardenseeker.com lists gardening retail outlets and gives plenty of information about gardening.
Gardens Online - Desktop Gardening
Gay Gardener - Lots of flower photos, useful gardening information, quotes, poems, feature articles and more...
Global Gardening - Simple advice and ideas for adapting your garden to climate change. Includes list of nurseries/useful websites and plant directory.
Gone Gardening - Tasks for the month and advice for disabled gardeners. Garden Forum.
Green Fingers - General information on projects to do in your guide, find nurseries and gardens to visit. Excellent site.
Hints and Things - Hints, tips, general information and advice on many different subjects. 
House and Garden Design - Designing spaces that feel as good as they look. Our global design consultancy means wherever you are, we can help design your house and garden.
I Can Garden - Canada's largest internet gardening resource site. Special feature is the garden tours to England and Europe.  
I Love Plants - A down to earth, easy to use directory to garden related information.
Lets Go Gardening - The one stop site for everything gardening and more.
Lewis Gardens - Gardening tips and topics offered by Lewis Gardens. Get advice on home gardening and the care of perennial plants.
Mirror Garden - Gardening tips and shop for garden supplies, tools, plants, flower delivery, bouquets, plant care, furniture and other gardening products.
Netgardeners.co.uk - Gardening site with gardening information, suppliers database, garden centres.
Paul's Garden World - All you need to know to garden successfully.
Plant Directory - Plant descriptions,care instructions and places to purchase.
Plant Ideas - Heaps of ideas for your garden from creating an annual garden to how to create the perfect lawn.
Real Gardeners - Non profit making site set up by gardeners in the UK, with membership worldwide. Highly interactive site used to exchange tips and ideas and has many areas including a live chat room.
The Allotment - The delights of allotments. 15 ITV programmes. Suit new & established growers, garden tips & sheds!
The Garden Helper - A free encyclopedia of gardening help and information, Gardener's Forum, and free flower and nature wallpaper photographs.
The Gardeners Almanac - An A to Z and photograph album on gardening, designed to answer that perennial question of 'what should I be doing in my garden this week' ?
Webs Best Gardening - Resource for gardeners on the internet.