A greenhouse comprises a body, a lid, an actuator, a temperature sensor and a controller. The body has a front wall, a back wall and two opposite lateral walls. The actuator is connected to the body and is in contact with the lid. The temperature sensor is connected to the controller and is located so as to read a temperature inside the body. The controller is electrically connected to the actuator and is electrically connected to the sensor so as to receive a temperature signal from the sensor. The controller is both operative to activate the actuator so as to open the lid when the temperature sensor reads a first temperature inside the body and to activate the actuator so as to close the lid when the temperature sensor reads a second temperature inside the body.