Hake a Mini Green house. Inexpensive Mini-Greenhouse You can build this raised garden bed mini-greenhouse to extend your growing season with used railroad ties for the base and some scrap wood and sheet plastic for the cover.
Recycled Greenhouse: this greenhouse is made from the windows of an old dairy farm. Virtually all the materials are recycled, save for the galvanized screws that hold it all together. It provides the perfect greenhouse for budding annuals.