wrote in message
oups.com...
Hi - thanks for your helpful reply! The Bog Bean is just floating - not
planted in any container, but after doing more reserach, I think that
must be what I have. Now the question is, do I keep it or replace it
with something that will be more attractive and less invasive. What
should I introduce to the pond (hopefully not chemical) to reduce the
nitrate level and encourage flowering?


I have two planted in pots (they did flower, but not for long. May through
June), they are forever sending shoots right out into the pond.
I just trim them back when they get long enough to annoy me :-)

I currently have Brooklime (flowering now), Greater Spearwort (flowering
now), Umbrella Palm, Parrot's Feather, Water Lettuce, Waterlilys, Flowering
Rush, Starwort, Water Violet (flowering now), Water Hyacinth (never flowers
here), Water Mint, Iris (flowering now).

Touch wood, I've never had a nitrate problem.
Plenty of plants should keep your nitrate down, and don't feed your fish to
often.
HTH

Peter