The Hawthorn tree is a member of a large genus of thorny shrubs called Crataegus belonging to the Rose family. It is a hardy, medium sized plant that is desirable in lawns for its form, bloom, autumn colors, and red fruit. Of the hundreds of classified species, most thrive in the temperate northern regions, especially wind-pummeled seashores. The Hawthorn is native to England where it is commonly called the Mayflower due to the month when its white or pink blossoms first appear. Because of their sharp thorns, Hawthorns were widely used as impenetrable hedge growth and when left untended will claim large areas with abundant thickets. Hawthorns grow to the height of a large shrub or a small to medium sized tree. After it flowers bloom in the spring, it produces a bright red fruit.