[30Moves]

Thanks for the info. I live in Tn - zone 6 - I have enough plastic to give it a second layer if needs be. So be it - I will erect it in the garden.

[greeneyes]

OK. I live in Missouri zone 5. Let me know how your plastic works out. I did not use plastic, because I did not want to have to monitor temps during periods of unseasonably warm weather etc. Plus I already had row covers.

I used a row cover which lets in sun and rain. As the temps got colder, I covered with straw and then with a Styrofoam egg crate mattress during the colder weather.

Once the snow melts and temps improved, I could just roll back the mattress. I also lined the planted area with black milk jugs full of water to give off heat.

Keep me posted on how your project works out.