This originally came from a Seedex (NARGS?will have to check) but it isn't what I thought it would be - it is also seeding itself into other pots!
Does anyone recognise it? Should I be just weeding it out? This year I've decided to "dead-head" it to stop it spreading - I'll have to check out where I used to have the pots in case it's also escaped into the ground,
cheers
fermi