The height and circumference measurements listed above are for the largest-known post oak in the Atlanta area. This tree is located at the Historic Gilbert House at Avery Park.
Post oaks are resistant to drought and grow very slowly. They can reach a height of up to 90 feet. The wood is extremely strong and decay resistant, so root rot is very unlikely. Dead branches stay on the tree for long periods of time.
Often you can identify a post oak by the sharp angles of its branches.
Acorns are up to 3/4 inch long.
The wood of a post oak is among the heaviest and densest of all the native hardwoods. It was used for shipbuilding in the days of sailing ships. Post oaks are also used to build fence posts, thus the name.
Bark: Steven J. Baskauf, Vanderbilt University Bioimages
Leaf: Paul Wray, Iowa State University, Bugwood.org
Acorns: Paul Wray, Iowa State University, Bugwood.org
Flowers: Steven J. Baskauf, Vanderbilt University Bioimages