The growth periodicity of clum and rhizome in Melocanna baccifera clumps were studied. The culm emergence is maximum in July to mid September. It was observed that everyday only the middle internode of a developing culm elongated maximum and moved gradually in successive order from the base to the tip of the culm. The lower internodes rarely elongated. The movement and elongation ofrhizome neck in the clump seemed to take place either slowly or actively throughout the year irrespective of seasonal variation. The culm emergence and rhizome neck development took place simultaneously. The growth periodicity of underground rhizome system and culm on the ground was found to be interrelated and seemed to be alternating with each other. Periodicity for culm emergence and rhizome neck development in M. baccifera was influenced by both soil and air temperature and ambient moisture condition.