Dark rain barrels to be heat source in winter and water greenhouse in summer.
Do you want a greenhouse but dont want to spend a whole lot? Free pallet racks and other repurposed materials make this one cheap build!
A mini greenhouse made from recycled bricks windows - 17 Simple Budget-Friendly Plans to Build a Greenhouse
We so want one of these in our backyard! Harden Greenhouse Out of Reclaimed Wood.
recycled plastic bottles greenhouse built by kids
DIY-greenhouses from windows/stormdoors/bottles etc.
Make Your Own Greenhouse, DIY Greenhouse from PVC and cattle panel Could be used as a Chicken Coop/Yard as well
El Instituto Juana de Pimentel de Arenas de San Pedro está llevando a cabo un proyecto para realizar un invernadero con botellas de plástico