I've had a single growth micranthum for a couple of years. It's growing very nicely. My first question is whether micranthums bloom off of healthy, sizeable single growths? If so, the second is about resting it to encourage bloom (which it hasn't done since I've had the division). Currently my only option for giving cool nights is in my garage. It's built into the house and although it's not heated, it never freezes - water pipes run through there by design. But it easily could get into the low 40sF. Is that too cold? I'll be ferrying them daily back into the growing room (LEDs. Thanks for your help. I hope I've given enough info.