Keith Davey Chinese Pistache Tree Potted -- 12 by 12 Inch Container Shipped as a potted five gallon tree in its original soil and container. Tree ships about four feet tall. Chinese Pistache "Keith Davey" is an improved grafted variety of Chinese Pistache, noted for its more reliable and vibrant fall coloration. The fall leaf color seems to favor the red shades. This shade tree does well in hot summer areas, yet tolerates winters down to USDA zone 6. Tree is low maintenance, usually only needing a little directional pruning, or a prunning to maintain a desired size, nothing of any regularity. The Chinese Pistache makes a good lawn or street tree, with moderate growth to 35 to 40 feet or clip to shape. A clean tree. Photo used courtesy of Quality Stock Photography.