A biostimulant composition comprising an amino acid, a polysaccharide, a betaine, a polyol, an enzyme and a plant hormone is disclosed herein. The biostimulant compositions are useful for enhancing the biomass of a horticultural, arboricultural or an agricultural crop. The biostimulant compositions are also useful for enhancing at least one of enhancing protein content, sugar content, trace element content, resistance to bruising, or preservation capacity.