This experiment was carried out to determine the effects of Cytozyme (1 ml.1-1), Ergostim (2 ml.1-1), Figaron (1 ml.1-1) and Multiprop (1 ml.1-1) on growth of Helianthus annuus cv. Anhandy, under laboratory conditions. Measurements realized 7 days after application of growth substances in sunflower plants with 21 days of age, cultivated on pots, showed that Ergostim promoted higher growth of sunflower hypocotyl, Multipropand Figaron increased development of sunflower hypocotyl in relation to check.