It is more of an advantage if you are doing hybridizing and growing them from seeds. If your room is about 70-74F it should be just right without any heat.

I.

Thanks for the reply. I live in western NY and the room is usually around 61-67F. Anyway, I have set up two trays, one with a heat mat and one without, just to see what happens. I will share my results here if I see anything interesting.
MP