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About this site

Frequently asked questions

  • Are there any minimum size guidelines that should be followed?

    No. If you feel a little unsure of adding your own tree information to the site: any tree that you think is interesting, is a good addition. This could be eg. because it stands out from the surrounding trees, it has a specific history, or is noteworthy regionally (although being small compared to other trees of this species somewhere else). There are no strict minimal criteria for trees, e.g. a minimal girth of, say 5 m, as this depends on the tree species. A wild pear tree with a girth of 3 m might be exceptional, while a beech tree of the same size might not be.

    Very young trees or saplings e.g. planted in your own garden, should be avoided as this is not what this site is meant for. Such trees can be removed by one of the site administrators without warning.

  • How can I add a new country?

    If you want to add a tree in a country that is not yet listed on this page, please contact
    The country will be added as soon as possible.

  • Who are you and why this website?

    I get quite a few questions about this, so: I'm Tim B, and I'm a Dutch speaking Belgian, living in the beautiful medieval city of Ghent.

    I love the morning fog that's hanging across the hilly fields and the little rivers. I like to go treasure hunting and ancient castle gardens. There are few things that I adore more than the smell of the forest after a rainshower. I like sunny photos. I like maps and numbers. I like challenges. I like to know about everything and telling everybody about it. I like hiking and city trips to make the pieces of the puzzle fit, finding new pieces, and to try to understand.

    This evolving site is giving me pleasure in all of these fields - in a direct or less direct way.

  • Why such a focus on numbers? Some very beautiful trees are not large at all!

    Of course something highly subjective as beauty cannot possibly be represented with a number. The fact that a tree could be somewhat taller or wider as another does not mean it is "preferable" or "more beautiful" in any way. This site does not want to state otherwise.

    However, if some trees are to be presented in some non random way, some criterium must be used. There are an infinite number of ways to do that: trunk volume, crown spread, age, some subjective voting system, height, ... As a default the girth is used, but as stated above, this is just a simple way of presenting trees, it is not meant to be seen as a hit parade.

    The site allows to provide the possibility to register tree measurements because over time it could provide valuable information on how species are distributed across the world and how well certain trees do it in certain geographical areas. And yes of course, also because for some it is fun and rewarding to search for the tallest, largest, ... trees. Others don't care at all about the trees' dimensions.

    There is definitely room for both opinions and everything in between, given the statement above about the need of a way of ordering.

  • I cannot see a tree appearing in the lists, although there is a large girth registrated for it

    Multistemmed trees (trees having multiple trunks) are not shown by default in the lists. For these trees it is much easier to obtain large girths, so it would not be fair to flood the top spots in all lists by multistemmed trees. If you would like to see them nonetheless, simply click on the link 'Show multistemmed trees', located beneath every table (bottom right side).
  • I did something by mistake - how can I correct it?

    Erroneously uploaded images can be deleted by clicking on the "Delete image" link on the image's page. Freshly added new trees (without measurements or photos attached) can be deleted by clicking the "Delete tree" link on the tree's page.
    For any other technical request or remark, please contact


This site started on a summer's eve in 2003 as a Belgian site about giant sequoia trees in Belgium and The Netherlands.
Soon location details were provided by many people from these countries.

In 2005 the site was restyled and was also partly available in French and English, but still manually edited by the webmaster.
However, in 2010 this became unfeasible for him and the site became, an interactive community site where users could now add trees/measurements/photos themselves, without a single webmaster being the bottleneck.

This website currently covers a wide range of tree species all over the world and is growing fast thanks to the enthousiasm of the community. Join us today!

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