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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.