This video demonstrates how you can grow during the winter in a 4 season greenhouse in Colorado.
Here are five more examples of cold climate greenhouses. Greenhouses are great for extending your growing season to 2, 3 or even 4 seasons.
For many colder climates a simple cold frame or high tunnel (or any of these 6 DIY greenhouse designs) can extend your season by weeks or even months in both the spring and the fall. Using warm beds and other techniques you can potentially grow food year round, depending on where you live.
