I have two night blooming Epiphyllum cactus. The Epiphyllum oxypetalum blooms are always finished by morning but the blooms on E. hookeri are sometimes still open at @ 8:00 a.m., and once there was a bloom still open at one o'clock in the afternoon.
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!