Edible Portion: Shoots A large bamboo grass. It grows 1.5-3 m high and spreads 1.8-3 m wide. It can be 10-15 m tall and spread 6-15 m wide. It formsclumps. The canes arch over. The canes are green in the first year then turn mottled to almost black. The canes are hollow andcan be 3 cm thick. ...