That's where I got the idea! "If they plant them in the south...."
Ursula, I take them right out of the pots and dig them into a dedicated semi-circular garden outside the (winter, warm) orchid room windows. Like glads or dahlias. Full southern sun all day. Lots of rain but they don't rot like they did in pots. After my bad pot rot experience, they stayed indoors all summer but never bloomed again, thus the planting idea was my solution. The results are well worth the trouble! So many in bloom this year. The bulbs grow over the summer.