Grow More Seaweed Extract offers a all natural organic non-toxic product that leaves no residue on crops. May be applied anytime during the growing season through harvest.Grow More Seaweed Extract contains naturally balanced chelated trace elements such as boron, molybdenum, copper, zinc, manganese, iron, and cobalt. The natural chelating agents are alginic acid and mannitol.Seaweed Extract contains low concentration of naturally occuring plant growth factor. As a foliar spray, use 1 teaspoon (5 grams) per gallon of water or use 11 ozs. (310 grams) in 50 to 100 gallons (189-380 liters of water per 4,050 sq. meters) of water per acre. Apply foliar spray as fine-misting spray to wet foliage. A biodegradable sticker/spreader like Grow More spray enhancer can be used to maximize dispersal and adhetence.Do not apply in the heat of the day or in windy conditions. Early morning or late evening applications are best. Best results will be achieved by making more frequent applications every 2 to 3 weeks rather than increasing the concentration of the spray solution.