I used to live in zone 9 in Houma LA. The Amaryllis I received one year for a Christmas gift bloomed then and afterwards I planted them outside. They bloomed every spring and multiplied so that when I moved I was able to bring several large sized bulbs to plant here in zone 7 in Sherwood AR and I still left probably 20 large bulbs there. They seem to survive here through our usually mild winters but bloom a little later in the spring. They have multiplied here also which makes me feel that they aren't quite as tropical a plant as normally thought.
I never try to force a second winter bloom since I enjoy them in my yard instead.
