"tom&barbara" replied


Tip...never let it seed, it becomes a weed if you do.

Thanks for the tip Bob. Can I let it flower then? Do I need to take
off the flowers as soon as they are going over to stop it from
re-seeding?

Yes to both.
I always found it seeded against and amongst other plants and was therefore
difficult to get out by the time you spotted it.
Not being a fish lover I didn't find much use for it either.
--
Regards
Bob Hobden
17mls W. of London.UK