Greenhouses, cold frames give gardeners a jump start. ... metal-framed buildings that cost $2,000 or more. Metal frames will typically last longer and be more durable, ...

Here's another window frame greenhouse, this one by Michael Taeuber, who created an Instructable to demonstrate how to build a greenhouse from old windows for his plants. 2. The Lean-to Greenhouse ...

A-Frame Greenhouse. If you’ve ever dreamed of living or gardening in your own slice of A-frame paradise, these plans are for you. This 40-page guide provides instructions for this simple 120 ...