Hi, I live in the Harrisburg area and grow under lights. Most of my 250 orchids go outside for the summer and stay there till frost threatens. just besure that you give them the light and watering that they need. Also becareful of putting any out that are planted in moss in that moss csn get too wet with rain and watering and not dry out--thus causing the roots to rot. I do keep most of my phals and lady slippers inside as well as a few cool growing ones that like the A/C.