[header] How to grow water lilies [title] Plant water lilies in containers instead of directly in the ground. [step] Use a wide, shallow pot or a mesh basket designed for aquatic planting. The container should have a diameter of 14 to 16 inches (36 to 41 cm). 
[substeps] It's easier to maintain potted lilies. Additionally, a lily planted directly into the ground could eventually overwhelm your pond.