I'm in zone 7a so I can only speak to that. Mine are over-wintered indoors...which equates to I 'sprinkle' some water on the pot maybe 1x/month. Once March rolls around I start watering...if I think about it, I water with fish emulsion and/or sea kelp...if I don't think about it I definitely do come April. Come May the pot gets placed back outside...gradually hardening off to full sun. If the mama in your cluster isn't big enough she won't bloom...sometimes it takes it growing a couple of years if you received a juvenile one. They like sun, heat, and food. Hope this helps a little.
