I am considering locations on my property for a small temporary greenhouse (for example, some variation of this greenhouse.
A great place for Sun exposure is my South-facing porch, which is wooden and sits a few feet off the ground. The primary use of this greenhouse will be starting tomatoes/peppers as early as possible.
Will the fact that the greenhouse is off the ground mean that it won't hold heat as well, and won't be as warm as a greenhouse on on the ground? If so, is there a simple way to insulate it?