Some bloom at night and those are pollinated by moths (bees don't fly at night). But most bloom during the day and need sun to open. They will close the flowers for the night.
Some bloom at night and those are pollinated by moths (bees don't fly at night). But most bloom during the day and need sun to open. They will close the flowers for the night.
RE: Blooming cactus - Mediolobivia atrovirens var. ritteri + Chamaelobivia no ID