Warwick HRI
- Organisation tasked with carrying out horticultural research and development and transferring the results to industry. Site provides details of research across horticultural sectors.
- http://www2.warwick.ac.uk/fac/sci/whri/

Economic Botany at Kew
- A useful set of web links to research, information, collections and educations sites. Based at the RBG Kew website.
- http://www.kew.org/scihort/ecbot/

Botanic Gardens Conservation International
- An international clearing house mechanism for botanic gardens, based in Surrey.
- http://www.bgci.org/

GreenSpace Online
- Promotes the planning, design, management and use of public parks and open spaces (formerly the Urban Parks Forum).
- http://www.green-space.org.uk/

Garden Organic Heritage Seed Library
- Aims to conserve and make available vegetable varieties that are not widely available. Who's who, details of varieties, and information for potential volunteers.
- http://www.gardenorganic.org.uk/hsl/

People and Plants Online
- The People and Plants Initiative, involving WWF, UNESCO, and Kew Gardens, working on applied research projects, community workshops, exchanges and training courses with young ethnobotanists.
- http://peopleandplants.org/

The Accidental Smallholder
- Describes the experiences of a couple who became smallholders, and offers information and resources to others seeking to do the same.
- http://www.accidentalsmallholder.net

Green Flag Award
- Details of the national standard for parks and green spaces in England and Wales.
- http://www.greenflagaward.org.uk/

Frontpage for Trees
- An informational resource for urban and garden trees, including details of fungi and mycorhizza.
- http://www.webmesh.co.uk/frame1.htm

National Council for the Conservation of Plants and Gardens
- Organises and coordinates the conservation and preservation of plants in national collections. Information on collections, local groups, news and events.
- http://www.nccpg.com/

Wye College National Fruit Collections
- The UK National Fruit Collection maintains the genetic stock of cultivated top and bush fruit.
- http://www.nfc.u-net.com/

Arboricultural Information Exchange.
- The AIE site has news, links and collections of resources for arboriculture.
- http://www.aie.org.uk/