Modern, large-scale agriculture operations utilize various machines and technologies to provide products to consumers. Greenhouses are among the resources used to help plants thrive.

Greenhouses are not a new phenomenon, even if today's incarnations may be more technologically advanced than their ancestors. The first attempts to grow plants in greenhouse-like structures likely date back to ancient Egypt, but there are writings from the Romans as early as 14 BC explaining greenhouse operations. The Roman emperor Tiberius wanted to eat cucumbers all year long, but Roman winters would not allow for cucumbers to thrive when temperatures dropped below freezing. Rolling cucumber growing carts into sheds only did so much. Someone came up with the concept of making sheds with sheets of a transparent rock to let the sun in and help keep cucumbers growing indoors warm. The idea took off from there.

Greenhouses consist of walls and roofing materials primarily made of a transparent material. The interior of a greenhouse exposed to sunlight becomes significantly warmer than the exterior, helping to protect plants inside from extreme conditions and enabling plants to thrive even when weather conditions are not optimal. Through the years, greenhouses also may have incorporated some form of additional heating.

Keeping plants thriving for commercial production now gets additional help from computers, as relying on sunlight alone may result in fluctuations in optimal conditions. Modern greenhouses can now employ smart technology for heating, cooling and lighting according to the cultivation technology company Growlink. This equipment is connected to a computer that can adjust conditions according to the particular plant being produced, such as tropical fruits, which require more moisture and heat.

Anyone who desires a greenhouse for personal plant growth may build one in his or her backyard with various plans available for free or purchase. Companies also sell prefabricated greenhouse kits that can be assembled with relative ease.

Handy homeowners also may construct basic greenhouses with materials found at many home improvement retailers. A wood frame greenhouse can be built in any size and covered with plastic sheeting. For the door, people may purchase a prefabricated greenhouse door or simply use a sheet of weighted plastic that can be tied out of the way. To allow for ventilation in hot weather, a wood-frame vent that can be propped open can be incorporated into the roof rafter design.

Those who want a more permanent structure may look into using greenhouse plastic paneling in lieu of plastic sheeting. Either way, home greenhouses can be as elaborate or as simple as individuals desire.

Greenhouses are effective ways to extend growing seasons for both commercial and home gardeners.