Whitespire is an outstanding white-barked birch that is considered highly resistant to the bronze birch borer. This beautiful tree thrives under a wide range of soil conditions from dry to wet. Features very showy, chalk-white bark that exfoliates as tree matures. Green foliage is a pretty contrast to the stems, and leaves turn golden in fall. An excellent fast-growing selection, growing 35' tall and 15' wide. Hardy to zone 4.