Our pond is now 3 years old and, as it is the only part of the garden that doesn't require watering the plants have thrived on total neglect so I have lots of spare flags (Yellow & purple), waterforget-me-nots and a whole pile of other attractive aquatic plants whose names I would have to look up and will require severe seperating later this year if I'm to have any visable water left
Whereabouts are you? You mentioned Stratford earlier, might be possible to arrange something