NH Seaweed Plant Food - 5 gal - SW150Neptune's Harvest Seaweed Plant Food is and organic liquid plant food made from Ascophyllum Nodosum that grows in the frigid waters on the floor of the North Atlantic. Seaweed, also known as kelp, is one of the best materials you can give your plants. It contains a treasure trove of over 60 naturally occurring nutrients and amino acids that plants thrive on. Additional benefits include: Stimulates the development and activity of beneficial soil