Cactus Plant Flea Market x McDonald's Coffee Stirrer Graphic Print Hoodie in Black, Men's XL Calathea leopardina (Elegant Calathea): Care and Growing Guide Cactus Mersch Cactus Aechmea Bromelia What's up with my calathea? I know they fold up at night but the leaves don't unfold during the day. This has been happening for about a week. : r calatheas Some cactus flowers can grow surprisingly large, even bigger than your hand! Every day in the garden feels like a new discovery.