We have lots of reeds, horsetail, iris, watercress, water lettuce, marsh marigolds, oxygenating weed, lillies, floating soldiers, juncus, grasses. Lots more too but i dont know names. We started by asking friends with ponds for little clumps, then as theh grew started swapping with others to get a good variety. A year after making the pond I'm able to split and give plants to others x