Repurpose old windows to create a beautiful greenhouse and save money while going green. Make use of these old window greenhouse plans! You can spend $50,000 for an upscale curved-glass greenhouse ...

1. The Window Frame Greenhouse Angela Davis Probably the most popular examples of DIY greenhouses you’ll find on the Internet.

This guide will walk you through the steps to build a simple lean-to greenhouse, with approximate materials cost of $314.82, and requiring around six hours to complete. Let's dive in!