Grow Base Fertilizer Cronk Nutrients' Grow is an essential component of our 3-part base nutrient system. With a nutrient ratio of 2-1-6, Grow provides the essential macro and micronutrients your plants need for healthy growth and strong stems during the vegetation stage. Suitable for a wide variety of plants and grow mediums, Grow is a crucial component in helping your plants reach their full potential. Attention growers: For optimal results, use Grow in conjunction with Micro and Bloom as part of the complete Cronk Nutrients base nutrient system. With Cronk Nutrients' Grow, you can help your plants achieve healthy, vigorous growth.