Thornless Cockspur Hawthorn (Crataegus crus-galli var. inermis) is a small to medium-sized tree known for its ornamental value and lack of thorns. It typically grows to a height of 20 to 25 feet and a spread of 15 to 20 feet at maturity. The tree has a dense, rounded crown with glossy, dark green leaves that turn red in the fall, providing attractive autumn color. In the spring, it produces clusters of fragrant white flowers that are followed by small red fruit that persist through the winter. Thornless Cockspur Hawthorn is tolerant of a wide range of soil types and growing conditions, making it a good choice for planting in difficult sites. It is also relatively resistant to pests and diseases. Keep in mind that the growth rate and size may vary depending on the specific growing conditions and location.