The present study was conducted to evaluate the response of Gladiolus cv. Eurovision plants grown in  a sandy calcareous soil to four rates (0, 75, 150 and 300 kg / fed.) of Abou – Tartour rock phosphate (ARP) and four concentrations (0, 2, 4 and 6 g / l.) of active dry yeast (ADY) during 2006 and 2007 seasons. Different vegetative growth parameters, flowering aspects, corm production and chemical constituents were considerably increased due to  the all rates of ARP. Active dry yeast at 4 and 6 g / L. were the most effective treatments for  augmenting growth, flowering, corm production and chemical constituents of plant. So, it could be recommended to supply  gladiolus cv. Eurovision plants with the high rate of ARP at 300 kg / fed. and spraying with ADY at 6 g / l. in order to obtain reasonable growth, marketable flowering quality and quantity as well as higher productivity of corms and cormels.