Abstract: The present work was conducted at Horticultural Farm of Sher-e-Bangla Agricultural University, Bangladeshto study the morphological characteristics of tuberose as influenced by gibberellic acid incorporated with organic manures. The experiment consisted with three levels of organic manure; control, cowdung 30 tha-1 and poultry litter 20 t ha-1behind with 0 ppm, 100 ppm, 200 ppm and 300 ppm gibberellic acid were tested with three replications. Application of organic manures with GA3 showed significant variations among the parameters. Yield of spike (3,50,000 ha-1) and bulb (21.72 t ha-1) was recorded in poultry litter @ 20 t ha-1 with 200 ppm GA3 compared to other treatmentswhich was more potential for production of tuberose.