trees.. NEVER... stop growing..

use google to see if you cant get some estimate of ANNUAL GROWTH estimates... and multiply the decades away .... they never stop ...

and you will get a lot further with a search engine.. if you convert to the full latin cultivar name .... usually its 3 words.. the third being .. in your case ... 'pawnee'

ken

This is the second thread I've seen this year referring to info suggesting Pawnee is a 'dwarf'. I call BS.
Looking around, I'm seeing online catalog descriptions saying things like, 'matures at 20-30 ft'; well, yeah, it may be 'mature' and producing nuts at 20 ft tall - at 10 years of age - but I'll guarantee you it'll get way bigger than that before it dies of old age.

I have at least a couple of Pawnee trees, grafted maybe 10 years ago; they're every bit as big as any of the other 30 or so varieties grafted at the same time.