Organic plant growth stimulant from North Atlantic algae extract (Ascophyllum nodosum). Liquid yeast extract containing brown algae obtained directly by extraction with water. A completely natural plant product, containing over 65 elements that promote growth and are useful for the vital functions of the plant, including alginates, enzymes, proteins and a large amount of cytokines and auxins present in the algae itself. Improves plant endurance and reduces transplant stress, reduces the effects on plants of stress, improves nutrient absorption, stimulates and improves maturation.