13. DIY Straw Bale Cold Frame
Straw Bales hold the heat as walls that need no tools to construct, just add windows or plastic, and frame.
14. DIY Recycled Milk Jug Plastic Bottle Green House
15. DIY Countertop Greenhouse
This mini construction takes up small space and could be used indoors or out for any plants.
Image and Instructions: Instructables
16. DIY Mini PVC Poly Tunnel
Create a PVC framed greenhouse that will work on individual garden beds and protect the plants from frost.
Image and Instructions: One Hundred Dollars a Month
17. DIY Covered Greenhouse Raised Bed
Image and Instructions: DIY How To
18. DIY Cattle Panel Greenhouse
Image and Instructions: Fyall