Oak (Quercus sp.)  %

        NEVER leaf prune or defoliate oaks; prefer deeper pots because they root deeply; leaf burn on edges indicates hard water salts, so use Reverse Osmosis (R.O.) water; can be bare-rooted when dormant; some oaks have dark brown roots, which are healthy but not the expected light color; cut tap root only if tree already has a good-sized ball of fine feeder roots.     [Fagaceae; Fagales]