Pond gardens do not have to be large, man-made water lakes complete with koi fish and ducks. In fact, they do not even need to include wildlife at all. If you are living in an apartment or condo with a small yard and would like to try your hand at growing water plants, consider building a small pond garden, complete with rocks and plenty of space for water plants.
Dig the area for the pond. Small ponds do no require a deep pool. A hole roughly 1 1/2 feet deep is sufficient for a small pond. Dig the sides of the pond at an incline, so that the pond has a slight transition in case small animals accidentally fall into your pond.
Fill the bottom of the hole with course sand. The sand protects the pond liner from any underlying debris and roots.
Place the pond liner into the pond, with it held slightly taut using rocks at the edges.
Fill the pond with water, allowing the weight of the water to press the liner into position.
Lay down a 1-inch layer of pond mud at the bottom for planting your water plants.
Arrange the rocks in your pond to your desired appearance.
Plant your water plants, arranging them so that they have enough room to grow.