Field experiments were conducted during the dry season of 2006 and 2007 at the experimental research farm of National Horticultural Research Institute, Bagauda to assess the optimum weeding interval in cabbage production. Seven treatments were used on the growth and yield of cabbage as 0 or the control,7,14,17,21,24,27 and 30 days intervals and all the cultural practices were uniformly applied on each plot. The treatments were laid out in a randomized complete block design and replicated three times. Data were collected on plant height, number of leaves, leaf area index and weight of heads and later analysed using ANOVA. The results showed that weeds suppressed and retarded the growth of cabbage as indicated in the zero weeding after 30 days interval, however, growth and yield of cabbage increased from 7 days to 24 days and highest significant yields of 13.2 and 12.5 than in 2006 and 2007 growing seasons respectively were obtained from 21 days interval.