| Is it Oxalis regnellii? (see link) Or something similar? It has a fleshy rhizome, so the pot should be big enough to accommodate some undergroung growth. Give it as much sun as you can (IMHO). I think it might be too cold for it still? Although the linked page says it's hardy to zone 7, I would not grow it outdoors here in a container. |
Here is a link that might be useful: Picture of a purple oxalis