Yellow Oxalis lawn

Colin Simeons via pbs
Thu, 31 Aug 2017 00:28:16 PDT
Thank you all very much for your feedback. It was an ideaand the fact that it is so invasive plus the colour of it leaves and smallyellow flowers, I thought that it would make a novel and striking lawn. Nowthat you have brought my attention to the fact that it is too invasive hasdirected me to seek for an other solution.



      From: Cody H <>
 To: Pacific Bulb Society <> 
 Sent: Thursday, 31 August 2017, 8:56
 Subject: Re: [pbs] Yellow Oxalis lawn
It definitely depends on where you are! Down in the Seattle area we have
plenty of O. corniculata in the garden, especially in pots or dry borders.
It's not so hard to control but it is nearly impossible to eradicate. And
it slowly strangles the life out of even much larger plants if left
unchecked. But I consider O. oreganum to be a much more offensive garden
pest--I planted a few stems of a form from the redwood forests, thinking
the same positive thoughts about native plants, and although they have
spread slowly, they have completely overtaken everything in their path,
including a very large and tough Luzula that overtook a few things itself
before it succumbed to the Oxalis. We've begun the process of removing the
O. oregana, but every little rhizome left behind lives on to fight again,
and I fear it will be years before we can let down our guard over that
patch of garden. After this and my experience with O. pes-caprae in
southern California, I am now quite wary of robust Oxalis species in

On Wed, Aug 30, 2017 at 8:54 AM Jo&Greg <> wrote:

> Yes, and I think it depends on your location. As a veteran of the invasive
> species wars, we always say, when in doubt DON'T PLANT IT. Here on
> Vancouver
> Island we have the native Oxalis oregano who pops up in my garden, filling
> in a
> few bare spots. It is easy to control, so I leave it alone. Native plants
> are so
> important, and it looks nice around the camass lilies and agapanthus. We
> do not
> seem to have the Eurasian O. corniculata in our area, and it is not noted
> as a
> concern in British Columbia's invasive species list. Probably just means it
> hasn't arrive yet!
> Jo Canning
> -----Original Message-----
> From: pbs [] On Behalf Of
> Hansen
> Nursery
> Sent: Wednesday, August 30, 2017 8:32 AM
> To: 'Pacific Bulb Society' <>
> Subject: Re: [pbs] Yellow Oxalis lawn
> """There is a lot about ridding a lawn of Yellow Oxalis (Oxalis
> corniculata).
> However I think that instead of ridding it, it might be a very attractive
> lawn
> plant with its purple green leaves and yellow flowers, also no mowing""""
> Speaking as a nurseryman battling this particularly pernicious weed, I
> think
> that would be an unwise use of Oxalis corniculata.  Further, your local
> State
> Department of Agriculture may have it on their noxious weed list.
> Unfortunately, this particular plant spreads with incredible speed and your
> neighbors may not appreciate it either.  Should you decide to eliminate
> this
> oxalis in such large quantities, you would have great difficulties over a
> number
> of years in doing so.  There are a number of books available now on how to
> have
> a grass-free lawn that suggest a wide variety of far less invasive
> plants.  I do
> hope you are not serious....
> Robin Hansen
> Hansen Nursery
> In smoky southwest Oregon
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