Wild Sorrel

Help ...
I have 3 raised veg beds, and last year for first time had a heavy infestation of a weed ... which was identified here as wild sorrel.

I did the usual weed advice - hoe it.
Had no effect it grew back over & over.
This year I manually dug it out - to clear beds 3 times, but after each rain it comes back again .... attached pic is only 10 days after fully clearing.

It takes many Hrs .. and is not proving effective.

Is there a selective weed killer that I could use (don't use weed killers normally), or am I better to finish the current crops and nuke all with a systemic weedkiller like Gylphospate ?

 

This is an oxalis species, or wood sorrels. There is a few native species but there are also invasive species. This might be a native one but i cant tell.

They all form little corms which they can recover from if you mow them
I would leave it till the end of the harvest and nuke it but they might be deciduous. because it has corms youll have a nightmare to dig it out otherwise, though you could do it by hand with enough effort.

 

Sorrel is a nightmare weed to have in the garden. It increases from minute bulbils which look like pills of soil. I would suggest regular spraying of glyphosate over at least a couple of years, 2 or 3 times a year, even then you will probably find it still in the soil. Hoeing just spreads it, hand weeding has almost no effect. I do no think there are any half measures. It is strong arm tactics or learn to live with it and love it!
You have my sympathy.

 

To be pedantic, this should be called Oxalis or Wood Sorrel, as "Sorrel" is a very different plant: A type of dock, with the typical tall dry reddish flowers.

Both sorrel and all oxalis species are edible, being very sour due to oxalic and malic acid present, though like with rhubarb and spinach dont eat too much (like more than a small bowl) or at all if you have kidney problems or youll get kidney stones