Environmental horticulture (green gardening) is the science or art of raising and tending plants in a responsible manner, taking into account the impact of your actions on individuals, animals, air and water supplies. Guide To Nutrient Management Plant Nutrition Understanding Fertilizers Erosion Control Enhance Your Lawn Health Tilling the Soil Fertilizing Your Vegetable Garden Irrigation Reducing the Effects of Drought Improving Your Soil Protecting Soil in the Winter Test Your Soil Uses for Leaves Winterizing Trees and Shrubs Nutrient Management and its Impact on Water Quality