I don't claim to take good photos, but the 'Tina James' primrose is worth sharing...
It's an Oenothera, and the interesting part is that several blossoms will suddenly but predictably open every evening beginning in midsummer. June 17th began the show this year, although some volunteer seedlings I have transplanted to another location in the yard have been doing their thing for a few days already.
The third picture is of the blossoms after the show, you can see the light conditions have changed from twilight to dusk. She'll bloom all night for the night flying insect pollinators, and into the next day, but by the time noon rolls around the blossoms are drooping.
