Oxalis obtusa

Laura Grant lauragrant1947@gmail.com
Sun, 26 Jan 2020 16:43:17 PST
Hi Jane,
What color is your oxalis obtusa?
Laura

On Sun, Jan 26, 2020 at 3:55 PM Jane McGary <janemcgary@earthlink.net>
wrote:

> Does anyone know how to eliminate Oxalis obtusa? I brought it into my
> present bulb house by accident, presumably as dormant bulbs (or whatever
> their tiny storage organs are properly called) that had got into the
> tunics of bulbs I brought deliberately, or that were clinging to some
> pots. All subsequent attempts to control it have failed, even replacing
> quite a bit of the plunge material where it's growing. I was just
> weeding out the crowns and wondered if there's a point in its growth
> cycle when the dormant bulbs have produced growth, but when new bulbs
> are not present. There are white stolons dropping from the crowns, and
> perhaps these will produce next season's storage structures. Can anyone
> advise on this?
>
> Although attractive in flower, it's a real pest. Fortunately it's not
> winter-hardy outdoors here. Don't ever let it loose in a warmer garden!
>
> Jane McGary, Portland, Oregon, USA
>
>
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