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Author Topic: The yellow peril  (Read 532 times)


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The yellow peril
« on: July 24, 2021, 01:51:51 PM »
Just read Shelagh'S article about Oxalis cornuta, aka Bermudan Buttercup. It was probably the second most common herbaceous plant in this garden when we moved in (after Bindweed). Whilst it is still here we do seem to have reduced it in quantity to a nuisance rather than a plague.
So how?
First of all we did use Roundup which worked for us. Try adding a little washing up liquid to the weed killer spray to make it stick to the leaves. Now we have planted up the garden that is no longer an option . Secondly and still being done I use a Flame Gun on it where it appears in the paths, gravel etc. Obviously one has to be careful not to damage any plants nearby. Thirdly we dig out every one we see with a clump of soil rather than trying to just remove the roots.
It really does need careful watching. It is best practice to get it out before it flowers. We have found that it goes from flower to seed almost overnight and each seed pod contains a lot of dust like seed. The roots have tiny 'bulbils' on them so any left behind will regrow. We have reduced it by about 95% by what we have done.
The saddest thing of all is that it appears to be included in peat free composts as we have found it growing in pot plants which have never been anywhere near the stuff in the garden.
Finally NEVER NEVER NEVER EVER put the bits in the compost heap. We put it in the bin (not the green waste bin either).
Sorry to say but the advice is eternal vigilance!
Best of luck with it.


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Re: The yellow peril
« Reply #1 on: July 24, 2021, 07:02:16 PM »
Thanks Palustris. These kind of posts are some of the most useful on the forum. It's incredibly valuable to be able to tap into the experience and wisdom of others.



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