If you are interested in growing water lilies in either a container water garden or a large pond, the planting process is essential. Begin by selecting a small container, measuring 12-20 inches in diameter and 8-10 inches deep, that will eventually be placed in your pond or tub. Cover the drainage hole with burlap or mesh to prevent soil from escaping. Because the plant will grow to the size of the container, choose a smaller pot if you are working with a smaller tub instead of a larger pond.

Fill the pot two-thirds of the way with garden soil or aquatic gardening soil, avoiding lightweight potting mixes containing perlite, vermiculite, or peat. The soil should be heavy enough to provide stability but light enough to promote the root system from escaping. Cover the rhizome against the pot’s side, with the growing tip pointing upward at a 45-degree angle towards the surface. Cover the root system with soil and add small rocks or gravel on top to stabilize the plant.

When lowering the potted plant into the pond or tub, set it at an angle and let it gradually acclimate to the water temperature. Position the pot’s base 12-16 inches deep, allowing the leaves to float on the surface. As the plant grows, its leaves will float out to the surface. If your plant already has developed leaves, start by placing the container so that the leaves are just beneath the water’s surface, around 6-8 inches deep. Within a few days, the leaves should reach the surface, and the plant can be lowered to its final depth of 12-16 inches.