Neptune's Harvest KM604 Organic Kelp Meal Multi-Purpose Plant Food, 1-0-2, 4 LbNeptune's Harvest Organic Kelp Meal (1 0 2) is dried and ground Rock Weed (Ascophyllum Nodosum), which grows in the cold clean waters along the New England coast, and is known as the best marine plant available for agriculture today. It is full of trace Minerals, Carbohydrates and Amino Acids, which help create a strong root systems and makes a very healthy plant. It should be tilled in the soil before planting or can be top dressed, incorporated into