Frame It All - Simple Modular Gardens. The gardens that grow with you. The 4ft.x4ft.x 36in. Greenhouse provides a friendly environment for your favorite crops. Benefits of using a greenhouse include; extended growing season, protection from unexpected weather events or pests and the ability to create micro-climate zones. Micro-climate zones allow you to grow crops that are not hardy in your planting zone. The greenhouse's zippered windows provide easy access and control over humidity and temperature. Multiple greenhouses can be linked together in series.