Backyard garden greenhouse covered with U.V. protected PVC film. The PVC film is fairly easy to install and can also be easily replaced when worn out. The film carries a three year warranty and has excellent heat retention qualities in addition to being very lightweight.
You can also find double poly covered steel framed greenhouses that can easily be set up with just one person. These inexpensive greenhouses are one-hundred percent U.V. protected.
Although relatively inexpensive you will find features such as doors, vents and an apex design allowing for expanded headroom. These greenhouses can even be raised off the ground by building a cedar or redwood base giving you even additional headroom if necessary.