Scaligeria napiformis (Willd. ex Spreng) Grande is an underutilized wild edible plant associated with the Cretan flora and diet, yet cultivation-oriented information on its response to nutrient management remains limited. This study compared two practical foliar nutrient management regimes, including a biostimulant-containing foliar product (INM-b) and a conventional foliar fertilization regime (CovF), together with an untreated control (Ctrl). Relative chlorophyll status, assessed by SPAD, maximum quantum efficiency of PSII photochemistry (Fv/Fm), CIE L*a*b* leaf colour parameters, fresh and dry biomass, and macro- and micronutrient concentrations in the edible aerial parts were determined. Foliar nutrient management significantly affected the SPAD-based relative chlorophyll status, leaf colour, edible biomass and selected mineral elements, whereas Fv/Fm was not significantly affected by treatment. CovF was associated with the highest SPAD values, darker, greener and less yellow leaves, and the highest N, Zn and Fe concentrations. Both INM-b and CovF increased fresh and dry biomass relative to the Ctrl and increased the P, K and Mn concentrations, while Ca, Mg and B were not significantly affected. Because INM-b and CovF differed in nutrient composition, formulation and nutrient supply, the present design does not isolate the specific effect of the biostimulant-containing component. Therefore, these findings should be interpreted as preliminary responses of S. napiformis to the tested foliar management strategies under pot cultivation, requiring future validation through isonutrient-, factorial- and field-based experiments.