Oh so this isn't something she would be able to plant outside?

At our other house I had a beautiful one outside that my DH's aunt left us---but it died--I think because i took it inside but didn't know how to properly care for it.
At this house:
Gee i wish I had of know about the dormant period before now ---I pulled one up out of my front large flower pot---because I thought it was dead---and now I know it was not---I was not aware they went dormant---do all the varieties do this???? perhaps the original one was not dead either???