Water plants for your home pond or garden fountain will enhance the beauty of your water feature and help improve water quality. Most water plants are tropicals and do their best in full sun. You'll learn a lot by reading the label that comes with each plant. The label will tell you zone rating, height, planting depth and facts about the plant. For example, this Blood Flower tag tells you the planting depth is 1 to 2. That means the plant will do well in shallow water. It blooms in the summer when planted in full sun to partial shade. It is a tropical rated Zone 8 and higher which means it will not survive our winter weather. Plants with a rating of zone 4 have a better chance of surviving through the winter. Besides adding interest and color, water plants will help keep your pond cleaner. For best results, you should aim to cover about ½ of the pond's surface. They multiply quickly in full sun and will shade and cool the water.