is the first and most studied plant growth hormone in horticultural study. For the professor or student of a plant science, auxin is a readily accepted term that can be placed to many biological plant functions. What about the home gardener? Does the hobbyist at home know what auxin is? By understanding the science behind the art, home gardeners can generate a positive impact on their home landscapes. This article is designed to simplify the science so the hobbyist can apply it to his/her well being.