Below is a selection of marginal plants perfectly sized for a container pond. These plants have slow to medium growth rates so will not overrun your container pond in a season. Plants are important for providing encouraging pollinators, shading the water from the sun and if the container pond is sunk into the ground, providing cover for visiting amphibians.
For a container pond measuring up to 1 square metre we recommend 4 to 6 - 1 litre marginal plants.