Dr. Nodes is your indoor garden"™s # 1 prescription! Dr. Nodes has been formulated by a team of leading experts in the indoor gardening industry. This product was designed specifically to shorten internodes, stop vertical growth, increases lateral growth and produce larger, more rigid flowers. This product is EPA registered for use on ornamental plants (i.e. bedding plants, flowering/foliage plants, woody plants or bulb crops). Use Dr. Nodes when plants have reached desired height. A few applications will provide immediate results.