To lay out the pattern in ecological and productive traits of sunflower (Helianthus annuus L.), two cultivars, Peredovic and Gunpo-local, were grown at 6 planting dates from May 15 to July 25 by 20 day intervals. Delaying of planting dates, Cv. Peredovic showed less variation in days to reach the head-visible stage than Cv. Gunpo-local, and two varieties are different in photosensitivity. Plant height and stem diameter and number of leaves of Cv. Gunpo-local were greater than those of Cv. Peredovic at the early planting, but the differences were decreased as planting were delayed. Cv. Peredovic yielded 158㎏ achences per 10are relatively from the May 5’s planting. However delaying of planting dates after July 5, there was serious reduction in the yield.