Small tidbit of info to share for those that have trouble getting their cacti to flower. This works for most (but not all cacti). Succulents vary so this is just for cacti.
Cactus need to go dormant to flower. So here's my growing schedule.
April/May I water them good to bring them out of dormancy, then repot if they outgrew the pot, or dump out old soil and put in new for ones that haven't grown much. When threat of frost is gone I put them outside except when we get multiple days of heavy rain in a row. A week or two later I fertilize them. Soon after I get flowers blooming as they are supposed to bloom in the spring and if pollinated by fall seed pods are ripe.
Come fall in October or November when frost is near I bring them in and put on my windowsill with the light on 8 hours per day. I water them once more and stop the rest of the winter. Mine are large, small cacti might need to be watered every 2 months if they are getting flat and wrinkled but usually they don't need it. It's important to turn your pots a little each day so they grow straight and not one side.
It's during the winter months and no water they go dormant but I keep the light on 8 hours a day they need light. Come March or April I notice flower buds forming and by mid spring when it's time to water they break out of dormancy and into bloom.
