We hypothesized that the composition of water would effect plant growth and those formulas (particularly Miracle-Gro™) would be ideal for the development of the radishes. First, each water sample was tested for various nutrients and was reported in the project. Under greenhouse conditions, five radish planted pots for each water tested type was treated for three weeks with their respected water type. The length, weight, and leaf count were all recorded (including comparison of stem and root length) and used to determine which water was most productive. Then they were compared to the nutrient levels to see if they were the cause of the difference. The results indicated that the water type that produces the best plant growth (yield) in both length and weight categories, is that of Miracle-Gro™. Tap water produced heaver plants, while rain water produced taller plants. The water type that produces the smallest and lightest plants is that of fish water.