What kind of clock flowers are there and why are they called clock flowers?

1. What are they?

There are many types of clock flowers, such as morning glory, which blooms around four o'clock in the dawn, peony, which blooms at seven o'clock in the morning when the sun just comes out, half-branch lily, which blooms at ten o'clock near noon, and marigold, which blooms at three o'clock in the afternoon. There are also many flowers that bloom at night, for example, tobacco flowers bloom around seven o'clock in the evening, and night-blooming cereus blooms at nine o'clock in the evening.

2. Why is it called clock flower?

These flowers are called clock flowers because their flowering period is quite regular. They usually bloom within a specific time. If they exceed that time, the flowers will not be able to bloom. The reason why these flowers bloom on time is that they have a biological clock in their bodies, which was formed through gradual adaptation to environmental changes and will be passed down through genes from generation to generation.

Another theory is that its flowering pattern is closely related to the changes in sunlight and temperature throughout the day. It also contains a clock enzyme that regulates physiological functions and can control the time of flowering. When the temperature rises, the enzymes in the body will increase, which will promote the flowers to bloom. When the temperature drops, the flowers will naturally wither.