My Christmas cactus go outside in the spring, along with all the other tropicals. They are on the east side of the house, next to the hostas. They get bright morning light, and are watered with the hose whenever i think of it. We have some real hot and dry days here, and these plants do great! Sometimes they get overlooked, and they don't come back into the house until late October. I think they enjoy the cooler nights of fall, and the shorter daylight sets them up fine for bloom. That way, I don't have to put them in a dark room or anything. The sunroom they go into is warm in the day and cool at night.
My mother and grandmothers all set theirs outside all summer long also, and I remember seeing staggering amounts of blooms on their plants every year at Christmastime! My dad had to help my grandma bring hers in some years because it was so huge. i now have parts of that one. It is possibly more than 60 years old now!
