Wild Four-o-clock (Mirabilis nyctaginea) is a native prairie species that can also be found in waste places. The “four-o-clock” in our domestic gardens was cultivated from a related European species. The name comes from the fact that this plant opens only in late afternoon. In fact the Latin “nyctaginea” means “night blooming” from the Greek.
[Glacial Ridge National Wildlife Refuge (Polk County, Minnesota)]