These are extremely important to establish clear water, provide food for fish and insects and offer a spawning area for fish and frogs. The underwater leaves act as oxygenators and absorb both minerals and carbon dioxide which help to starve out the algae. Oxygen production is of less importance, despite the common name. These are nearly always sold in bunches. Bunches should be weighted down to ensure it sinks to the bottom of the pond. We usually pot one end of the bunch in a pot with rocks as they don’t need soil to survive.
In early spring (late April or early May) place several bunches in your pond. Suggested rate is one bunch per 1 – 2 square feet.