Posted: 14/11/2016 at 14:00
How big it this pond Angie? How many varieties can you fit in?
If you don't like the variegated I. pseudacorus I'd get rid of it before it goes too far. I have a variety called I. p var bastardii, a nice cream colour. I don't like the variegated one either. I think it's likely that both of these will seed back to the species yellow.
I haven't any experience of the others. I have ponds but the water levels are so variable only the tough can stand it.