Keeping this in consideration, are wax myrtles fast growing?
Grown as either a tree or a shrub, wax myrtle is a fast-growing, irregularly shaped evergreen plant.
Regarding this, how far apart do you plant wax myrtle?
Typical plant spacing in a hedge equals one-third to one-half the plant's mature spread. Therefore, space each wax myrtle's trunk 7 1/2 to 12 1/2 feet apart. To plant a "Fairfax" wax myrtle hedge, space the trunks of the individual plants 2 to 2 1/2 feet apart.
Wax myrtle (Morella cerifera or Myrica cerifera) is native to the American southeast where residents traditionally planted it as an insect repellent. The presence of wax myrtle shrubs repel many types of insects and rubbing skin with the crushed leaves keeps mosquitoes away.