Pond Boss Forums AQUATIC VEGETATION Controlling unwanted plants lilies in containers

I don't think any of the hybrid lilies produce fertile seeds. At least none I've worked with so far have produced fertile seeds. I think many of the lilies when root bound in containers could creep out of a container. Lilies are more likely to grow profusely when the pond bottom is very mucky and soft. Lilies spread slowly in fresh dug hard packed pond bottoms. Larger forms of whites and yellows tend to grow deeper and spread quicker. Many catalogs selling lilies indicate how large of the general spread of each type will be. Ones with larger spread tend to grow deeper and are faster spreading.

Wild white lilies are notorious for fertile seeds, abundant fragmentation of root buds, fast spreading and deep growing; cheap but troublesome.