If you’re low maintenance when it comes to your pond then you will love water violets. These frost hardy plants will keep throughout the cold autumn and winter weather, without any need for pruning. That will be one less job to do on the gardening list.
However, we should mention that this plant flowers fully in the summer. This isn’t necessarily a bad thing, their green foliage will provide a balanced contrast to the spring flowering aquatic plants mentioned above. And did we mention this plant contributes to the removal of pond nitrates? An often underestimated problem within garden ponds, while also providing an attractive environment for wildlife like bees and frogs.