Posted: 20/10/2012 at 12:03
Really? Gets a bit nippy at night though. But if that's what you recommend, I can do that!
Okay, perhaps there is a case for closing-up overnight until the first few surface, but after that left open day & night would be best.
Mine (sown about the same time) are in a cold greenhouse, as soon as they germinate they will be transferred to my brick coldframe with the top open day & night.