(a species of owlet moth (Noctuid)) Some caterpillars, after they emerge from their egg, can increase their weight by 25,000 times.

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Urban tree survey

Join us in our nationwide survey of trees in streets, parks and gardens across the UK.

Take part in our survey so we can build a picture of what trees are growing where and find out how the tree population is changing.

The urban tree survey is now in its second year. We need you to take part because you have access to the neighbourhoods and gardens we're interested in.

Getting started

You can start surveying trees now. Everything you need to take part in the survey is in this section - including full instructions, a survey form, interactive tools and identification keys.

  • Holly fruit
    How to take part in the urban tree survey

    Find out what you need to do to take part in the urban tree survey, using some simple tools and guides.

  • Horse chestnut fruit
    Record your results

    Send us your urban tree survey results using our interactive map and survey form.

  • Evergreen oak tree
    Results map

    See your tree survey results and images on our map, along with all the other results submitted so far.

  • Needles of a coniferous tree
    Identify trees

    An identification key, factsheets and guidance to help you identify trees.

  • Cherry trees in a park
    Cherry tree survey

    The cherry survey will be running again next spring. Find out what the first survey revealed.

  • Tree in meadow
    About the tree survey

    Find out why trees are important, why we are doing this urban tree survey and what we hope to learn.

  • Sycamore seed being examined
    Tree ID forum

    Get help with your identifications and discuss trees in the NaturePlus tree forum.

  • Pupils in a park surveying trees
    Learning resources

    School pupils can take part in the urban tree survey with these curriculum-linked learning resources aimed at Key Stage 2 (ages 7–11)

  • Trees around a lake in a park
    Trees glossary

    Don’t know a sepal from a stigma? Use our glossary of features and definitions for some of the words and phrases used in these pages.

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Great holly hunt

Holly trees are a striking part of Britain's winter scenery and our scientists want to learn more about where they are growing in gardens and parks.

Help us by going on a holly hunt and plotting your sightings on the urban tree survey online map.

Record your holly trees on the map

Holly (Ilex species) berries

Holly trees (Ilex species)
A holly tree laden with bright red fruit set against glossy green leaves is one of the most cheerful objects in the winter landscape.

The most well-known species in Britain is the common or European holly, Ilex aquifolium, one of only three native European species.

Find out more about holly trees

View images of holly trees and get identification tips

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Discussions about trees

If you have a question about trees, or want some help identifying a particular tree, the experts and enthusiasts in our Tree ID forum could help you.

Latest discussions

Join the discussions