Sunflower, also known as sunflower, originated in Europe. It is named because its flowers are shaped like the sun and will follow the sun to adjust the orientation of its flower plate. Its color is also bright golden yellow like the sun, which can bring people a warm feeling

1. What changes do sunflowers have in the morning, noon and evening

Generally, at 3 a.m. every day, the sunflower faces the East and is ready to wait for the sun to rise. When the sun rises, it will slowly stand more upright under the sunlight, and gradually adjust the orientation of flower plates and leaves according to the movement of the sun. By noon, the sunflower plate was facing south. In the afternoon, the flower plate will gradually bend to the West. In the evening, the sunflower plate will face the West. Only at night, after the sun sets, its flower disc will sag significantly, but the plant is still straight, and the auxin in the body will rearrange and slowly turn to the starting position

However, the sunflower does not follow the sun immediately, and after its flower plate opens, it no longer rotates towards the sun, but fixedly towards the East. This will prevent the pollen from being burned by the strong noon sun

2. What time of day does it bloom

Sunflowers usually wait for the sun to rise at 3 a.m. every day, and then bloom gradually between 4 a.m. and 6 a.m. Sunflowers can bloom all year round as long as the temperature accumulates enough. When its flowers open, it takes about a week to open from tongue to tube