kdfisher wrote: Curious about many seeds I started six days ago. I built this seed starting greenhouse trying to improve my seed germinating. Outdoor temps will probably hit freezing the next few nights. The area is well protected and gets quite a bit of radiant heat from the gravel driveway and stone foundation during the day. Does a few cold nights have an effect on germination? Seems it wouldn't as I've heard many success stories with winter sowing. Am I worried about nuttin?