Temperature and Ventilation Management
Designed to hold in warmth during cold seasons, a greenhouse also becomes a heat trap during warm weather. If temperatures exceed healthy levels, plants can be cooked to death. In cold seasons, plants freeze to death if temperatures drop too low. This delicate balance of temperature management requires heating and ventilating systems, which are the most expensive operating costs of a greenhouse, according to the University of California’s Vegetable Research and Information Center. Although most greenhouse plants require night temperatures between 50 and 70 degrees Fahrenheit, ideal growing temperatures are plant-specific. This means you may not be able to grow a variety of plants in the same greenhouse.