My wife and I got a small pot of Calla Lily's for Easter. They're in bloom obviously, but it's still so cold out. I would like to try to find a spot in the garden for them to see if they'll bloom again next year, but how do I care for them until then?

It's been only highs in the low-mid 50's, and lows around freezing lately. Should I keep it indoors (don't really have a spot under my grow lights tho), or just let it bloom and start to wither inside, and then plant outside no matter the weather? Not sure what to do with it. Don't want to kill the bulb(s). Would it be ok to put outside during the day and then bring in overnight? What about watering it?

Thanks!

Todd In Philly