Although most of the plants bloom in the daytime, there are many exceptions, such as the evening primrose, which blooms at night.
In fact, it's a long-standing habit that nocturnal fragrance blooms at night. At night, nocturnal fragrance will send out bursts of fragrance to attract moths for pollination. This is a kind of adaptation to the environment.
The petals of nocturnal are very unique. They are obviously different from the petals of other plants. There are pores on the petals of nocturnal fragrance. The pores have a feature that when the air humidity increases, the pores will be expanded. The larger the pores are, the more aromatic oil will be evaporated, so the fragrance will be particularly strong.
In addition, nocturnal flowers not only give off fragrance in the evening, but also in rainy days.
Why do nocturnal fragrances bloom at night? In fact, it has something to do with its origin.
According to its growth habit, it needs flying insects to help pollination. But in the subtropical region, the temperature is very high in the daytime, and the flying insects are seldom active, so they will come out at night to look for food. For better pollination, it will bloom at night, and emit fragrance, attracting flying insects. After a long time of reproduction, it has formed the habit of flowering at night.
The evening primrose usually blooms at 8 - 10 o'clock in the evening. The temperature is very suitable at this time.