Oxalis versicolor continues to flower in the greenhouse, but as usual, never opens its flowers. It's a good thing the buds show the pretty backs of the petals. I used to move the pot into a sunny spot if one occurred, but I've given up because that did not induce opening. Maybe there is a lengthy lighting requirement, or heat as well? Do any of your oxalis open? Diane Whitehead Victoria, British Columbia, Canada On 2016-12-28, at 4:14 PM, Mary Sue Ittner wrote: > I have quite a few Oxalis blooming: Oxalis compressa, O. luteola, two forms, O. purpurea, many forms, Oxalis obtusa, just 2 so far, Oxalis versicolor, Oxalis perdicaria, and a couple of days ago surprising me an odd O. imbricata. > > >