Thanks for all those comments.
Carolyn, I gave them the old sniff-test and didn't get anything. And my nose isn't blocked, my olefactory equipment is in good working order
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Mary, somehow it's difficult to conjure up images of waterlilies when you have Alaska in the back of your mind. Are your plants indoors, or in a green house? I'd guess to get good results you may need to warm the water a bit.
Jonna, yes they are a beautiful plant. There's another red one that's called Malay Red (or something like that). I don't have a white night flowerer. I do, however, have our native white one but it's a day flowerer. It flowers end of wet season, and all through the dry season when there's enough water.