I don't have much to say about night gardens. I'm rarely out at night. And when I am, I don't look at flowers much (though down the street a ways is a porch with climbing roses that are lit from behind in a mysterious and wonderful way). What I know, though, is that white is magical at night. I grew a drift of nicotiana for the scent, but I love to look at it, too. Especially when dusk comes and I don't see the unfinished tasks outside. Just white flowers and the dark.