The best way to extend your garden growing season is by building a greenhouse in your backyard as a protected place. Another advantage is getting your seeds off to an early start. If you strongly desire to grow your own food then adding a greenhouse – even a small one – is the way to go in your backyard. And a “greenhouse” can easily serve multiple purposes. If you want your greenhouse to double as a workshop or studio, include large roof overhangs on the south side to shade the windows in summer (or cover glass areas with heavy shade cloth).
On the next page is one of the better DIY greenhouse plans we have come across.