I am trying to build a tropical greenhouse. My first time trying it.
So, I bought the "Palgram Glory 8'x12' greenhouse
My zone is 7a.
My goal is to keep the greenhouse at least 65F during winter.
Do I need to build/insulate the floor? I was thinking that I need to insulate the floor. So, I plan to put a 2 inches layer of foamboard, then 2-3 inches of pea gravel layer on top of it, then 1-2 inches of sand, and finally 2 inches of concrete block.
Would that be enough to insulate the floor?
I try to minimize the cost of heating as much as possible. But, in the event that I need to heat to keep it above 65F, I will use a space heater.
Can anyone provide me any advice on my plan? Is it feasible to have this tropical greenhouse in my zone 7a?
Would my floor insulation plan good enough?
Thank you.
