Many years back my sister Rose brought me a single bulb packaged and labeled Gloriosa. She had picked it up in a remainder bin, which is how I have acquired many bulbs. All that potential laying there is so hard to pass by.
This one has stumped me for years, it grew a delicate stem of leaves about a foot high and stopped. Last year I left it in it's clay pot outside for the winter on the sheltered side of my vegie garden. That was the trick. The plant has climbed over four feet, each leaf has a tendril that wraps a nearby structure for support. The bloom is so delicate. Gloriosa!