Four growth attributes from two varieties of the vegetable crop Citrullus lanatus Thunb. (Water melon) cultivated in Umudike, Abia State of Nigeria were studied as the crops were growing on the field. Seeds of the two varieties viz. Wantoma60 and Raider52 were obtained from an Agricultural Research Institute within the town and planted in a Randomized Complete Block Design within the Botanical Garden of the Department of Plant Science and Biotechnology, Michael Okpara University of Agriculture, Umudike. Data on number of leaves, number of branches, vine length and number of internodes were collected from the growing plants of the two varieties. Student t-test statistical analysis tool was employed in analyzing and comparing the mean values of data. In all four parameters measured significant differences were recorded between the varieties at P < 0.05. Variety Wantoma60 performed higher than variety Raider52 in all parameters measured. The implication of the result is that variety Wantoma60 mmay be better adapted to grow vegetatively than variety Raider 52 in the climatic and edaphic conditions of Umudike south-east Nigeria.