CAUTION: MAY HAVE INVASIVE TENDENCIES. Quercus acutissima, or saw-tooth oak, is considered a noxious weed or invasive in some regions of North America (not Ontario). The native range of sawtooth oak encompasses eastern Asia, including China, Korea, Japan, and the Himalayas. While it is generally considered low maintenance with good pest resistance, if planted in alkaline soils the leaves will become chlorotic. Quercus acutissima drops large, spiky acorns and a significant number of leaves, with the heaviest shedding in the fall. It is considered moderately messy due to the acorn litter and frequent leaf drop that require regular cleanup. A good alternative to plant includes the Quercus alba, Quercus bicolor and Quercus macrocarpa.