I have my pepper, toms and aubergines in the conservatory to give them just a touch more heat than everything else which has to suffer the rigours (is that how you spell that word ???) of my greenhouse, and even with the added warmth, my chillis and peppers have taken nearly 4 weeks to come through! My toms took days, my aubergines took a couple of weeks, so I guess the cold is responsible for slowing things down, plus the lack of light. I pot on, carefully, something I am terrible at, start to get impatient and heavy handed, and hope for the best. :-\