An experiment was carried out to evaluate the efficacy of herbicides application in   managing weeds and improving the gladiolus (Gladiolus hybridus Hort. cv. Novalux) growth and flowering.  Treatments evaluated include: two doses each of atrazine, metribuzin, butachlor, pendimethalin and two controls, viz. weed free and weedy.  All herbicide treatments significantly (p=0.05) affected the G. hybridus plant growth, flowering and associated weeds growth. Butachlor 1.0 kg/ha pre-emergence application (PE) recorded significantly greater plant height (90.23 cm), number of florets (12.46) while weed free control recorded significantly maximum spike length (60.64 cm) and floret size (7.58 cm).  Metribuzin 0.25   kg/ha PE was at par with these treatments. All herbicide treatments caused significant reduction in weed density. Weed free control and metribuzin 0.25 kg/ha PE were most effective in reducing weed density, fresh and dry weed biomass with highest weed control efficiency and weed control index. Metribuzin at 0.25 kg/ha PE could be recommended for controlling the weeds and improving growth and flowering of Gladiolus hybridus cv. Novalux.