Become a Tree Warden

Our Tree Wardens are local tree champions who support our Tree Officers to plant and look after trees in the borough.

A selection of different trees across the borough

Our Tree Wardens Scheme is part of a National Tree Warden scheme by the Tree Council. Our branch has been running since 2006 and we have approximately 60 Wardens who regularly help us monitor street and park trees in their neighbourhood. Becoming a Tree Warden is a good way to take pride in your area and help the Tree Officers manage our tree stock.

What do they do? 

Tree Warden volunteers are the eyes, ears and voice for the trees in their neighboroughood. They're often the first to become aware of local tree issues and bring them to our attention. They provide a vital service by:

  • telling us about a tree they think might have a disease
  • watching for infringements of Tree Preservation Orders
  • informing us when trees start to show signs of ill health or become dangerous through decay
  • helping with planting and maintaining community orchards
  • learn about tree species in their area to support or Tree Officers


By becoming a Tree Warden, not only will you get to help protect trees, but you will also be given opportunities to learn, socialise and visit tree-related sites!

In the past, we have:

  • organised educational walks through Hatfield and Welwyn Garden City town centres
  • visited venues such as Kew Gardens and RHS Wisley
  • attended orchard maintenance sessions
  • hosted evening talks covering a wide range of tree-related topics from folklore to internal decay, from bats to identification

Become a volunteer Tree Warden

No training or experience in tree management is necessary to become a Tree Warden - just a love of trees and a few hours to spare.

It's up to you how much, or how little, you wish to be involved. Get in contact if you would like to find out more or take a more active part in looking after our countryside:

Telephone: 01707 357 000

National Tree Week 2022

National Tree Week is the UK's largest annual tree celebration and this year will be running from November 26 - December 4 2022. During this week, local authorities (including us!) plant thousands of trees to mark the start of winter tree planting season. 

The theme this year is #HiddenConnections, celebrating trees as a connecting force of our world. Bringing all of us closer to nature and also revealing the fascinating connected world below ground, from complex root systems to mysterious mycorrhiza.

The Tree Council are hosting two free talks during the week on the fascinating world of hidden connections! 

  • demystifying the Tangled World of Tree Roots
  • trees and Fungi Working Together - A Remarkable Relationship.

If you're interested, find out more and sign up.

Trees in the borough

The canopy cover in Welwyn Hatfield is 23.3% which is made up by the trees we own, Hertfordshire County Council owned trees, private landowners and residents trees. The recommended countrywide target is 25% - so we're not that far away! Many tree species can be found in Welwyn Hatfield including the cherry, sycamore, oak, birch and apple amongst the most common, making up around 65% of tree in the borough.

We plan to commit to planting at least 300 trees per year in the borough.

Find out more about the trees in the borough by reading out Tree and Woodland startegy