I did an estimate today for selectively pruning a 20 year old Bradford Pear that somehow escaped wind shear due to it's position between buildings. The radius from trunk to dripline is 18', so according to Michael Dirr's notes on Pyrus, the height should be double that, or 36'. Can anyone 'top' that? (pun intended, please never 'top' anything green with branches!) PS- no Chanticleers or Aristocrats allowed. They have a distinct cone shape compared to the Bradford's round shape. Oh, remember when everyone thought the Bradford was the miracle tree? And then all they did from about1974ish-? was grow thick towards it's center, and then gradually shear away in the wind to this day!