The purpose of this study was to determine the effect of uniconazole treatments on growth and water relations of woody ornamentals. Two experiments were performed to accomplish the objectives. The first experiment used three plant species, pyracantha, photinia, and holly, and four treatment rates for uniconazole medium drench and foliar application treatments. The effect of uniconazole on plant growth and chlorophyll content was determined in this study, The second experiment evaluated the response of pyracantha growth and water relations to uniconazole medium drench or foliar applications in combination with three irrigation regimes.