You may laugh, but I already tried to create the first blue nightbloomer. Figured I'd use N. lotus for the nightbloomer and N.ampla for the color. So I got a 'Blue Ampla' and set to work....took me awhile to realize Blue Ampla was a sterile hybrid that resembled WBG...so never got seed to even try to sprout.
I have since gotten N. ampla, but it occured to me if you got a blue night....how would you ever see it?<g>