Grotek� Insta-Green��is designed to help growers when a nitrogen boost is required for their plants. The formula can help reduce yellowing and restore lush green colour to cuttings, seedlings or plants that are showing signs of underfeeding. Use Grotek� Insta-Green� until vigour has returned to the plants or as a preventative application. Grotek� Insta-Green� is best used as a foliar spray to take full advantage of the additional iron in the formula.