Two of my oxalis plants are blooming and at least one more has buds that are on the way. First up is Oxalis obtusa ‘Buttercup’.
Here’s a photo of the plant, back in November when it was still in the process of emerging from dormancy.
I used to keep the oxalis in my unheated porch, but had to move them into the basement under lights when pots started to freeze. It’s still chilly down there (they like some cold), but I think it was the lights that prompted this big wave of blooms.