I also have a plant that I'm wondering what it is.
It has long pointed leaves that are green on top and purple underneath. It
just started blooming again (hasn't bloomed for 5 years). The blooms looked
like purple "pitas" with white flowers inside. When I got it, I was told
it's called "Joseph's Cradle". I have attached a picture. I'm excited
that you may be able to help me.