My wife collected these back when we were in the gardening business. (A long time ago!)
They glow in the moonlight for the moths to hone in on
and all the pollinators seem to stop by for a taste.
When freshly opened you can see a droplet of nectar deep inside the blossom.
I noticed online that Missouri Primrose are sometimes misidentified as Hookers and they drop the Giant.
We have both! They spread like weeds and we let them!
When they grow in the same patch and bloom heavy it is beautiful
the way they glow as the sun sets and moon comes out.