A glasshouse, also known as a greenhouse, is a structure made primarily of glass or transparent materials that allows sunlight to enter while trapping heat. This creates a controlled environment ideal for growing plants, especially in regions with harsh climates. Glasshouses can be used for various purposes, including commercial agriculture, research, and hobby gardening. Inside a glasshouse, temperature, humidity, and light levels can be regulated to optimize plant growth. Common plants grown in glasshouses include flowers, vegetables, and tropical species. The design of a glasshouse can vary, with some featuring automated systems for ventilation and irrigation to enhance efficiency and productivity.