The weather forecast is of particular interest to gardeners. Today, meteorologists can predict the weather for the next five days quite accurately. In the past, flowers, along with animals, were seen as reliable indicators of the weather.
Flowers are sensitive to changes in temperature and humidity. Sometimes these changes are manifested by noticeable features, such as a change in the position of the flowers. Sometimes the plant moves. They also send more subtle cues, such as changes in scent. It takes a trained eye and a keen nose to recognize these signs.