To provide a method for plant cultivation involving feeding culture soil with an aqueous solution of fertilizer by drip-watering to efficiently feed the culture soil with the fertilizer and water through increasing the nutrient/ water-absorbing power of plant.

This method for plant cultivation, which involves continuously or intermittently feeding culture soil planted with a plant with an aqueous solution of fertilizer, also involves application of a rooting promoting substance onto the culture soil prior to planting and/or during cultivation; wherein the rooting promoting substance, which is e.g. a sulfur-containing amino acid, auxin, iron ion, may be applied in the form of an aqueous solution or powder onto the culture soil prior to planting or during cultivation or may be applied onto the root ball of the plant prior to planting.