"June Hughes" wrote in message
...
In message , BAC
writes

"June Hughes" wrote in message
...
I hadn't thought of putting watercress in our pond. I shall give it a
go. Presumably it will work in a koi pond with a water filter and
ultra-violet lamp?

I've grown watercress in my pond to try to reduce the nutrient level, but
I
wouldn't eat it from that source - it goes straight into the compost.


Why not if the water is purified?

I know it's probably illogical, just can't bring myself to do it. Funny,
given I think nothing of eating plants grown in soil liberally treated with
manure :-)