To successfully cultivate water lilies in a container or pond, it is essential to follow the correct planting procedure. Begin by choosing a small container that measures 12-20 inches in diameter and 8-10 inches deep, which can be placed in your pond or tub. Cover the drainage hole with mesh or burlap to prevent soil leakage. Select a smaller pot if working with a smaller tub since the plant will grow to the size of the container.
Fill the pot two-thirds of the way with garden or aquatic gardening soil, avoiding lightweight potting mixes containing perlite, vermiculite, or peat. The soil should be heavy enough to provide stability while allowing the root system to escape. Place the rhizome against the pot’s side, with the growing tip pointing upwards at a 45-degree angle towards the surface. Cover the root system with soil and use small rocks or gravel to stabilize the plant.
When lowering the potted plant into the pond or tub, set it at an angle and allow it to adapt gradually to the water temperature. Position the pot’s base 12-16 inches deep, so that the leaves can float on the surface. If the plant already has leaves, start by placing the container 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.