Oxalis Triangularis

[spider32]

I bought this plant in spring and being told it was hardy planted it outside. The flowers and leaves were very prolific until recently when all the leaves have appeared to shrivel and die off.
Is this normal? I have now heard it makes a better house plant.

[jno]

you're just living in the wrong hemisphere...

http://thelawnguide.com.au/weeds-pests-diseases/27-pests-and-diseases/166-oxalis.html

(Sorry, I can't offer any actual advice)

[Sam1960]

I'm out my depth with this one, but some good information here which might help.
https://www.houseplantsexpert.com/false-shamrock-plant.html

[Chipchopper]

I imagine that its going through the dormant period (although it does seem a little early) and should reappear in the spring.
Good news is its not considered to be one of the invasive varieties.