I mentioned earlier this summer that I had some Four O'Clocks growing here at the farmette. A favorite of mine as I remember them from childhood. My Grandmother Bird always grew them at her house in Kentucky. She would send my mom envelopes of the seeds when we lived in North Dakota.
Needless to say, no one else in the neighborhood, or maybe the entire Air Force Base, had these growing in their flower beds. Standing around 24 inches tall at maturity, they get their name because they open late in the afternoon. It's really the drop in temperature that does the trick. On cool summer days, they stay open all day long.
When the seeds turn black, they will fall off and self-sow, giving you plenty of plants for the next growing season. They do form tuberous roots which help them come back year, after year.
This season I am collecting plenty of seeds to spread their joy around the farmette.
"Just living is not enough.....one must have sunshine, freedom, and a little flower."
Hans Christian Anderson