We have three very large Tulip tress in our yard in an
Atlanta, GA suburb. The trunk diameters range from 4' down to 3'. There
is a larger dead one around 5.5' Our neighbor's kids love the large trunk
size and shear height of these wonderful trees. We esitmate the tallest
at around 60'. I was wondering if there was a table or estimation guide
to their age in relation the the trunk diameter and or height.
Here's a page with a formula for estimation of age based on diameter (in
Liriodendron tulipifera Tulip Poplar 2.5 X d.b.h. (diameter at
breast height, or ca. 4.5 feet above ground) (in inches)
Anthony Brach Ph.D.
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Update: June 2012