The growth rate of trees varies depending on the species, location and age. For a given species, you can use Wolfram|Alpha to plot growth rate curves based on a statistical sample of measured trees. Using these growth rate curves, the height and diameter of a tree species, for example a pecan tree or dogwood tree, can be estimated given its age and location.
Tree Growth
Specify the species along with the location and/or age to obtain height and diameter data for that species of tree.