I went out to see the blooms open a few nights ago as the sun was setting. They are perfect, lovely iridescent white flowers that close during the hottest, brightest part of the day then open again when it cools and the light softens.
What I didn't expect was the swarm of bees ecstatically bathing in the moonflowers' pollen. What a hum they made as they passed from blossom to blossom covering their little bodies with fairy dust! Watch a video of it I made on YouTube.