The experiments conducted on several freesia cultivars provided by the Dutch firm Van Staaveren, aimed at examining the effects of: growing place (plastic tunnel and open field), differentiated soil moisture content (50-60% and 70-90%), mulching (beds covered with 3 cm layer of sawdust and without any cover), growth regulators (GA3 at concentration of 10-160 mg·dm³ and etephon at concentration of 52,5-840 mg·dm³), on the number, weight and quality of offspring corms. Corm yield (corm weight increase and corm number increase coefficients) depended on the cultivar, corm size and cultivation method. Freesia cultivars of shorter emergence period and faster growth gave higher corm yield than the cultivars slowly sprouting and of lower growth dynamics. It was found that, irrespective of the cultivar, the weather conditions (first of all the soil temperature) and growth regulators showed the strongest effect on the length and course of development stages, next the growing place and mulching and the least - the soil moisture content. The place and cultivation period, and mostly the soil temperature modified morphological traits of the aboveground parts of freesia (plant height, the length of vegetative stage, flowering) more than the yield and quality of offspring corms. As a result of high temperature the fresia plants may not produce flowers but they do form the corm treatment stimulated the growth sing their weight and number. Etephon offspring corms. GA3 applied for freesia of offspring corms, proportionally increa- increased the number of offspring corms.