Grow Big® is a stable, highly concentrated, comprehensive blend of major, minor and micro nutrients formulated to promote spectacular balanced growth, instant green-up and color intensity of blossoms. Grow Big® will enhance plant size and structure of all plants. Grow Big® is great for roses, tomatoes and lawns. Perfect for use during the vegetative cycle, or Grow Big® can be used as the only houseplant fertilizer you will ever need. Expect exceptional results.