The study on effect of NPK on plant growth and flowering of Amaryllis belladonna was carried out at Department of Horticulture, Allahabad School of Agriculture, SHIATS, Allahabad during 2013-2014. The study showed that at 180 DAP, application of N₁₂₅:P₅₀ :K₁₂₅ Kg/ha resulted in significantly maximum plant height (43.96 cm) and No. of leaves/plant (8.66), too late flower scape emergence (174.66 days), tallest flower scape (51.76 cm), maximum diameter of flower bud (2.42 cm) and flowers (5.66) and longest durability of flower (6.55 days). The earliest flower scape emergence (167 days) was recorded in T₁(N₆₀:P₃₀:K₃₀ kg/ha) while total number of flower scapes/plant (3.33) and number of flowers/scape (4.10) were found maximum in T₂ (N₇₅:P₄₅:K₄₅ Kg/ha) and T₅ (N₁₇₅:P₇₅:K₁₇₅ Kg/ha), respectively.