This clumping banana plant reaches 20 feet tall and 10 feet wide with 9-foot-long leaves. The drooping flower stalks are covered with showy powdery purple bracts. Abyssinian banana (Ensete ventricosum) is from Africa. Most of the family grows 15 to 20 feet tall and 10 to 15 feet wide.The 10 to 20-foot-long leaves are 2 to 4 feet wide.The dark green leaves have thick midribs that hold the giant leaves upright.byssinian banana (Ensete ventricosum) is from Africa. Most of the family grows 15 to 20 feet tall and 10 to 15 feet wide. The 10 to 20-foot-long leaves are 2 to 4 feet wide. The dark green leaves have thick midribs that hold the giant leaves upright.