Jeronimus Cottonless Cottonwood is a fast-growing deciduous tree is upright becoming developing a rounded crown in maturity. This is a seedless male clone so there is not the dispersal of ""cotton"" fluff, a cleaner (less allergenic) option for landscapes. It thrives in moist soils and is ideal for large yards, reaching 60 ft tall and 40 ft wide, a great shade tree.