CAN SPRAY UP TO HARVEST. Kelp Green is cold water extracted offering advanced foliar nutrients. It can be used on all grasses, fruits and vegetables and for organic production. It is an ideal tonic for grasses that suffer from stress, poor root development or inconsistent color. Kelp green is rich in Chelates, minerals and polysaccharide and natural antioxidants. MIXING: FILL SPRAYER 1/2 FULL OF WATER ADD KELP GREEN THEN FILL SPRAYER TO TOP WITH WATER. If adding fertilizer wait a minutes before adding other products agitate mixture for best results.