The Tree Council https://www.treecouncil.org.uk
The UK’s lead charity for trees.
Hedgerow Harvest www.hedgerowharvest.org.uk/
Foraging, recipes and related information (a Tree Council project)
The Woodland Trust http://www.woodlandtrust.org.uk
The UK’s leading woodland conservation charity.
Ancient Tree Inventory https://ati.woodlandtrust.org.uk/
Records the oldest and most important trees in the UK.
Ancient Tree Forum http://www.ancienttreeforum.co.uk/
The Ancient Tree Forum seeks to secure the long term future of ancient and other veteran trees through promoting best management and conservation practice, lobbying governments over their recognition and protection, encouraging research, and increasing people’s enjoyment of old trees.
Hedgelink UK http://www.hedgelink.org.uk/
Hedge Management. A partnership of national organisations interested in hedgerows.
Citizen science project with the aim of mapping every tree in Britain.
Urban Tree Cover http://www.urbantreecover.org/
Displays the results of Urban Forest Canopy assessments completed by Treeconomics, Forest Research and other organisations. The site also provides statistics on potential plantable space, historical tree cover and tree cover canopy goals where they are available. For some locations further studies and urban forest reports are also available to download.
The Conservation Volunteers (TCV) https://www2.tcv.org.uk
Support for local conservation groups, also runs own projects.
Award winning citizen science project that aims to help spot new pest and disease threats to UK trees. The project is a collaboration between Forest Research, Forestry Commission England, Forestry Commission Scotland, APHA, Defra, Fera Science Ltd, the National Trust, Natural Resources Wales and the Woodland Trust.
The Arboricultural Association https://www.trees.org.uk/
The professional body for arboriculturists.