For year-round food production in any climate, construct your own passive solar greenhouse. In winter in frigid climates, it is difficult to find fresh, local, nutrient-dense fruits and vegetables. Using conventional architecture makes it practically hard to grow warm-weather crops like tomatoes, bananas, avocados, and other perennials. Self-heating solar greenhouses are the answer for the millions of home and small-scale commercial farmers. How to build a greenhouse garden is a comprehensive manual for creating and constructing greenhouses that use solar energy to produce naturally heated, lush growing environments even in the dead of winter. It covers solar greenhouse design and siting principles, glazing material properties and selection, preventing heat loss, ventilation, and construction techniques.