Acorns were obtained the fall of 2000 from a tree in the National Arboretum and planted in my back yard.
The spring of 2003, 26 were planted out on a site free of trees with sandy well-drained soil. Each was surrounded with a meter-square roofing paper ground cover to suppress competition. By the fall of 2004, 25 remained alive; 3 were growing weakly. By fall 2007, all the survivors remain the size they were when planted, and are clearly suffering from the lack of release from surrounding shade.
a typical healthy seedling June 2005