Crataegus phaenopyrum or Washington hawthorn, is non-native to Ontario with a range that encompasses the eastern half of the United States, from southeastern Pennsylvania and New Jersey to Florida, and westward to southeastern Missouri. It thrives in well-drained soils, adapts to various pH levels, and tolerates urban pollution. While it supports pollinators with its spring blooms, its thorns make it unsuitable for recreational areas. This hawthorn drops small red fruits in fall and sheds leaves in autumn, creating moderate levels of litter. Transplanting is easiest in spring.