Growing in a Pond
The flowers are first cultivated in a container and then slid into the pond. This is one of the best methods, since most people have artificial ponds made of concrete, and covering the bottom of the pond with soil is not feasible. It will not only make the pond muddy, but will also be difficult to clean.
Choosing a Container
The first step is to choose a good container. A wide and shallow container is best, you can choose from the round ones to the rectangular ones. Plastic containers about 12 cm deep and 28-30 cm in diameter work best. If the container has large drainage holes, line the container with burlap so that the soil and mud does not escape through the hole.
Preparing the Soil
Since these flowers are aquatic plants, ordinary potting soil will not do. You will need nutrient-rich loamy soil that is boosted with organic manure and aquatic fertilizer. Aquatic fertilizer pellets can be found in gardening stores or nurseries. Place the soil in the container lined with burlap, and then compact it.
Planting the Tuber
Make a small depression in the soil towards the edge of the container. Now, plant the rhizome in the soil after removing any old leaves and roots. The rhizome is not planted in the middle of the container like most plants because the roots of water lilies spread laterally, and therefore require space to grow.
Next, cover the soil with a thin layer of gravel or small rocks so that the soil does not run out of the container when placed in water.
Place Plant in Pond
Slide the container gently in the pond at a depth of 12-18 inches. The stems and leaves of the plant should float above the surface of the water. If your pond is deep, then you need to construct a supporting structure under the water and place the container on the structure.