Why do the petals of daisies curl downward?

The petals of daisies may curl downward due to a variety of factors, including environmental stress, such as extreme heat or drought, which can cause the plant to conserve moisture. Additionally, petal curling can be a response to aging or damage, as the flower matures or becomes less healthy. This curling behavior may also help protect the reproductive organs from harsh weather conditions. Overall, it is a natural response to environmental cues and plant health.