Plant white flowers!
Duh, why didn’t I think of that before we bought so many plants. I’m reading Container Gardening 2009 and picking up a lot of advice, but this is my favorite tip so far.
“I like to slip in white flowers whenever possible because they are the ones you notice at night,” wrote Kimbery Crane from EarthArt. She was talking about window boxes, but this is especially relevant for rooftop gardens since the light there can be limited.
R* and I were up on our Brooklyn rooftop at 12:30 a.m. this morning, watering and checking in on our ailing rose bush. White flowers would definately be more visable.
Here’s more pondering on white flowers at night: “As I think of white-blooming plants, I envision flocks of white geese flying in the night sky. They are like reflectors, mirrors that toss back to the earth all the available light.”