Black willow (Salix nigra) trees are around 100 feet tall when fully grown. They are the largest willow of around 90 species, with some black willows reaching a maximum of 140 feet. In the north and in some poor growing conditions in the south, black willows may only reach 30 to 60 feet.
About this Author
Janet Teas has been writing professionally since 1993. She is an architectural color consultant, avid gardener and decorator. She has written home and garden articles for publications such as "Better Homes & Gardens," "Hometown Cooking," "Country Woman" and "The Essential Herbal" magazine. Teas received a Bachelor of Music in music education from Bowling Green State University.