Yellow Oxalis

[paulllambert]

Does anybody know the best way of killing this horrid weed please? I've tried digging out the root and spot treating with glyphosate, but the little devil keeps returning, seemingly stronger than ever. Any suggestions gratefully received. Thanks, Paul

[buildersmate]

Google RHS oxalis. You will find the Royal Horticultural Society webpage on this plant, and getting rid of it. It's a combination of persistence, a good handfork and glycophosate.

[carrust]

You could try covering the whole area with some old carpet. This starves the weed of light, thus killing it. I used this method on my allotment when I first got it.

[Chipchopper]

Yellow oxalis seems to be a big problem for gardeners on both sides of the pond, I find this a tiresome weed mostly in pots, where it behaves almost like a parasite and steals nutrients intended for the pot-grown plants and I've noticed more recently that its starting to get between flag stones also.
I think that one of the best ways to keep it under control is weed it out or hoe it off before it gets to the flowering stage, because if it is allowed go to seed, the pods actually explode when ripe and send the tiny seeds far and wide.

[buildersmate]

Especially the variant with the tiny brown leaves and the deep deep root system

[paulllambert]

Thanks for all your help. It certainly is a tough little so and so. I think I probably (inadvertently) made the problem worse by composting lawn cuttings which had oxalis growing in it last summer, then spreading it in the beds. DOH!!!
Thanks again