plastic greenhouse inside normal greenhouse

[laura G]

 I have had an aluminium and glass 6 x 8 greenhouse since early summer last year, so this is the first time it has gone through a winter. I have noticed the few times we have had frosts most of the plants inside have frozen, so i know that i wont be able to put many plants out there until most of the frost have left us. What i was wondering was if i started off tomatoes and peppers indoors could they survive in a plastic greenhouse inside the normal greenhouse, would this give them just enough protection? or would there be some problems i am not thinking of?
Thanks in advance.
Laura

[laura G]

[cambourne7]

I seen on gardeners world a couple of years ago that they covered the end of the greenhouse with bubble wrap and made a bubblewrap curtain so one part of the greenhouse was insulated.

[davee52uk]

Were there any gaps at teh bottom of the 'house where the frost could get through. Broken panes higher up such as in the roof would not affect it so much.

[Two Choices]

Laura G, i do something very similar. I use my large seed tray frame and wrap it with bubblewrap. I am fortunate in having a thermostatically controlled fan heater that I place inside my mini-house. It maintains an even temperature and only comes on when needed. If you do not elecrtricity in your greenhouse you could use one of those small "flying suacer" parafin heaters at night and on very cold days (I've done this too) providing you leave a small gap at the top to act as a flue and prevent fumes and gasses building up. 
Alternatively you could place a few large plastic bottles full of hot water in there in the evening and it would help a little and maybe stop the freezing. Hope this gives you some ideas. TC :)

[morton]

I have a 12ft x 10ft greenhouse with a maximum/minimum thermometer inside. Without heat or insultion it will get down to the outside temperature overnight. If its minus 2 centigrade outside it will get down to that inside overnight. So whilst it has it has been up to 28 centigrade inside during last couple of days it would still drop down to the forecast 6 centigrade tonight uninsulated.

[shirlton]

Hi Laura.
             I have 2 of these mini GH and they are invaluable.At the moment they are both in use.One has my begonias and Chrysanths in to start them off and the other is being used outside without the cover to grow my sweet peas,Just using half the shelves.Later I will use them both for hardening off.  Saves having to trundle things in and out of the GH at night. Just zip up and its done. BTW i don't use any heat in the GH. I start all the early stuff off on my window sills.
                            Regards Shirl and Tone