Fish and Frog faeces ?? You only cut above the water level so a swish with clean water is sufficient. This is my 2nd year of using watercress from my pond....no ill effects so far.
If you are worried about the plants drawing up the unmentionables, just think what the majority of people must be eating when they buy fruit and veg from a shop. Not only can the seed be treated but the top growth too.
RB1........I agree wholeheartedly about the Land Cress. It's a hardy little beggar and makes a welcome snack in the middle of winter.
All part of the food cycle - same as adding horse/cow muck to the veg patch - all good stuff
I give mine a good rinse and have been eating it for 5+ yrs with no (known) ill effects
I just popped a bit in at the top of the waterfall and although there's not much in the summer, most of the year it grows quite well - sometimes too well.
Pete......I liked the no (known) ill effects
People are far too frightened of nature these days......nothing like a bit of dirt to keep your immune system healthy
I love a bit of dirt
I wouldn't eat it if the stream passes through grazed pasture - even if the cattle are off the land for some of the time. Not sure of the biology, but I wouldn't risk it.
Thank you.... totally forgot about this thread I started. I went to my local garden centre to buy a few packets of seeds and to my surprise they now stock watercress seeds so I'll be growning it safely on my veg patch.
A quick pic.... I do eat a lot of watercress so hope they are successful.
If you cut watercress does it re-grow from the roots?