How to age a tree

Stuart Primrose

Hi all, apart from counting growth rings which can be very difficult to accurately guage a tree's age does anyone know of a formula such as the one below to roughly age a tree?

How to age a Tree: (from a U.K. site )

1. Convert girth measurement to centimetres (multiply by 100)

2. Divide this value by 1.25 if tree in woodland or by 2.5 if standing on its own

Brent Ferris

I have generally found the trees growing in the open grow faster (diameter wise) than those in the forest.
I have told people over and over again, estimating a tree's age by size is just a guess. In an urban environment, if you can estimate the age of the house first, and then consider if the tree is around the same age, and then suggest a range, people are happiest -- because you can estimate well how old the tree is,
In fact, i have a double booth at a Home show, and one of the displays in the 2nd booth attempts to show that diameter and age does not correlate that well -- whether you compare species to species, or within species. And despite people seeing that display, and despite me saying it is difficult to tell, their estimation of me always climbs if I can nail down the age of the tree to what they know the age of the tree is,.

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