Neptune's Harvest Liquid Seaweed Made from North Atlantic kelp, 100% organic liquid seaweed contributes to more vigorous growth, healthier root systems, greater yield, and more vibrant flower color. Enhances plant hardiness. Use as a part of your regular liquid fertilizer regimen. Recommended dosage: 1 oz. per gallon for outdoor plants. Less for houseplants. N021 Liquid Seaeed $28.99 P&H $7.25 Quantity to order: