Lowest winter temp for fem auto

I was hoping that auto's would be able to take a temp change. Not saying below 50, but a nice range. A lot grow in the house so the temp is regulated. Without the photo staged needed auto's adjust. I guess I'm a product of the sixties. I try to conserve energy.
Haven't grown in 30yrs. THC got to high for our needs. Now I can be aware. Time will tell! I grew a regular outside. One of 3 were female. Now the 3 auto's inside. While starting more auto's. Why do these plants supposedly not take extreme heat either? It's states perfect is 75°. How many of you don't get a few weeks of 100°. Hemp grew wild in Iowa. Afghanistan is not a cold place either
 
Top