This species bloomed the other day. Its smaller than listed below, but its the first time it bloomed. It has three (3) stems coming out of the container.
Information from McClure & Zimmerman catalog
"Native to the Himalayas, this late flowering species bears up to 4 exceptionally fragrant, outward-facing slender white trumpets with a suggestion of green. Each petal is 6 to 12 inces long resulting in blooms of spectacular size. A real character, this plant produces stem bulbils underground ad tends to wander, creating some surprises when the stem often comes up some distance from where the bulb was planted."
Do not fertilizes
