Rodsboys, it stays light out here until 8 p.m., but the lilies close at about 4 here, too. I think it has more to do with the variety of lily, than the daylight hours, but not certain. It has not been hot here lately either, so not closing because of the heat. I think they have a timer ... open at 9, closed by 4. LOL
Love the frog/tadpole/lily pics, Addy! Wish just once I would see some bullfrog tads changing into frogs. I suspect there are some in the bogs, but I never see them because of the plant cover. Maybe someday ...