how tall does black bamboo grow
Growth Rate. In the ground, black bamboo grows 3 to 5 feet in height every year, eventually reaching heights of 20 to 35 feet. Container-grown plants, however, typically reach only one-half to three-quarters of their normal size.Running bamboo spreads at a rate of 3 to 5 feet per year.lack bamboo (Phyllostachys nigra) is a tall, attractive, black-culmed bamboo grown in U.S. Department of Agriculture plant hardiness zones 7 through 10.