Guy Posted February 24, 2019 Report Share Posted February 24, 2019 This is my first year with a greenhouse. I've never wanted one before, but getting interested in CPs prompted me to buy one. This morning it was very frosty down here in Dorset. The greenhouse dropped to 3°C. This is the lowest it can get, as there's a heater in the greenhouse which is set to come on at 3°C and go off at 5°C. It's been a beautiful day and the temperature in the greenhouse is now just under 28°C. This is with the two roof windows open, the floor vents open and the door open. This is a huge temperature variation over a very short period of time. It'll probably get cold again tonight. How well do CPs cope with this huge variation? Guy Quote Link to comment Share on other sites More sharing options...
ada Posted February 24, 2019 Report Share Posted February 24, 2019 still growing mine without any heat at all here in yorkshire as i have for 28 years, I'll let you decide how they cope. ps no neps though. ada Quote Link to comment Share on other sites More sharing options...
3Star Posted February 25, 2019 Report Share Posted February 25, 2019 Like Ada I grow my Sarracenia, Cephs and vft's in an unheated greenhouse without any issues. The only ventilation they get when it is hot is provided by the automatic opening roof vents. Dave Quote Link to comment Share on other sites More sharing options...
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