Ty Ty has a wide variety of tall and wide caliper oak shade trees for your yard. Oak trees are generally slow growing trees, but the hardwood lumber is used for building, furniture and many other uses. Some famous huge oaks in Europe are thousands of years old, and this tree is the nation's National tree with many memorial specimens having been planted in honor of Presidents like the Eisenhower oak at Sea Island, Georgia. This mysterious group of trees will inter-cross to form hybrid oaks, a botanical conundrum. Some Oak trees are evergreen and others are deciduous, and the acorns are a very important food for wildlife animals.