Sisley Garden Tours
- An alphabetical directory of many gardening personalities down the ages.
- http://www.sisley.co.uk/gardeners.shtml

Museum of Garden History
- The recreation of a historic knot garden and the history of British gardens and plants are included as is a virtual visit to several exhibits at the museum.
- http://www.museumgardenhistory.org/

The Pulham Legacy
- James Pulham and Son were eminent landscape gardeners of the 19th and early 20th centuries, remembered for the spectacular rock gardens they created in many country estates and RHS Wisley.
- http://www.pulham.org.uk/

London Parks Discovery Project
- Educational resource for teachers and children, from the London Parks and Gardens Trust. Covers the boroughs of Enfield, Greenwich, Newham, and Wandsworth only.
- http://www.parkexplorer.org.uk/

Joseph Dalton Hooker
- A leading nineteenth century botanist, plant collector, close friend of Charles Darwin and director of Kew Gardens.
- http://www.jdhooker.org.uk/

Walled Kitchen Gardens Network.
- Association celebrating walled kitchen gardens. Background, advice, pictures, events and register of gardens.
- http://www.walledgardens.net/

Historic Gardens Foundation
- Charity set up to link everyone concerned with the preservation, restoration and management of historic parks and gardens. Includes an archive of magazine articles.                       
- http://www.historicgardens.org/

The Association of Garden Trusts
- National organisation representing garden trusts. Activities, articles and archive of newsletters.
- http://www.gardenstrusts.org.uk/

Garden History Society
- Society promoting the study of the history of gardening and the conservation of historic gardens. Publications, research, archives and book reviews.
- http://www.gardenhistorysociety.org/

UK Database of Historic Parks and Gardens
- A searchable database of Historic Parks and Gardens in the UK.
- http://www.york.ac.uk/depts/arch/landscapes/ukpg/database/index.htm

British Library: Lost Gardens
- Illustrations from manuscripts and early printed books dig into the story of gardening. Includes games.
- http://www.collectbritain.co.uk/tours/lostgardens/

Upton Grey Garden
- The famous fully-restored 1908 Gertrude Jekyll garden in Upton Grey, Hampshire.
- http://website.lineone.net/~uptongrey.garden/

Ascog Hall Victorian Fernery and Gardens
- Discovery and restoration of a 19th-century fernery on the Island of Bute in the Clyde Estuary.
- http://www.ascoghallfernery.co.uk/