Plants that tuck themselves in for bedtime exhibit a natural behavior known as nyctinasty. Scientists know the mechanism behind the phenomenon: In cool air and darkness, the bottom-most petals of certain flowers grow at a faster rate than the upper-most petals, forcing the flowers shut. I’m not sure what this flower is but I encountered a dozen of them along a raised garden on a late evening walk. All of them were closed. I may have to revisit these flowers to observe and learn more about them. Hope everyone has a super awesome weekend!