GREEN BRIGHT LETTUCE: Greenway Biotech lettuce fertilizer has an ample supply of chelated micronutrients, ensuring that your heads of lettuce are bright green, full and delicious. 100% WATER SOLUBLE: This type of hydroponics fertilizer comes in a powdered form and is designed to dissolve quickly in water. Gardeners can stir it into the water in a watering can or fill a garden hose dispenser and spray a large area of plants. PREMIUM INGREDIENTS: This vegetable fertilizer professionally formulated with quality ingredients and Contains 8% Nitrogen, 15% phosphorous, 36% potassium, boron, copper EDTA, iron EDTA, manganese EDTA, zinc EDTA, and molybdenum, results are distinct & visible IMPROVES SOIL QUALITY: Natural fertilizer for vegetables is an effective starter fertilizer for both soil and hydroponics use. Also an excellent source of nitrogen for green garden vegetables. This natural soil amendment helps to promote bountiful growth of lettuce. ECO - FRIENDLY: Our water soluble fertilizer boosts plant food growth because it is free of heavy metals or materials. Lettuce and other greens need lots of plant food to have healthy leaves, which is why finding the best fertilizer should be a priority Iron is essential for chlorophyll production and photosynthesis. When iron is deficient, plants cannot produce the green pigment needed for energy, resulting in yellow leaves with green veins (interveinal chlorosis) starting on the youngest growth. Standard iron sources like iron sulfate quickly lock up in soil, becoming unavailable to plants. EDTA chelation protects iron molecules and keeps them soluble for direct plant uptake—delivering 3-5x more usable iron than non-chelated sources.