Gallon, bush doctor kelp me kelp you plant food, a natural, organic seaweed extract derived from norwegian kelp, ascophyllum nodosum, liquid concentrate suitable for fruits, vegetables, lawns, garden, flowers, & hydroponic applications, regrows vigorously & is harvested sustainably, a natural potion containing micronutrients, especially hand crafted for organic gardening, root drench fertilizer for gardens, drip irrigation, & hydroponic systems, enhances nutrient uptake for improved fruit & flower development & increased yields.