What season is autumn?

Autumn is the harvest season, and the fruits of many plants mature in autumn. In the subtropical region of the northern hemisphere, the temperature in autumn is obviously lower than that in summer. As the temperature drops, the leaves of many deciduous perennial plants will gradually change color, wither and fall off, leaving only branches for winter. Panicum miliaceum will come to the end of his life, withering and dying.

The temperature will gradually drop in autumn, but it is generally slower than in winter. Due to the difference of dry and wet conditions, there will be cold and rainy weather conditions or dry and cool weather conditions in different regions. In the cold late autumn, due to the large temperature difference between day and night, the water vapor transpiration during the day will condense at night, either dew or frost.

Plants representing autumn

1, maple

Maple belongs to arbor plants. Its leaves are rough and palm-shaped. Its leaves are green in spring and summer, and turn red or orange in autumn. It looks like a red sea of fire, very spectacular and beautiful, with high ornamental value.

2. Chrysanthemum

Chrysanthemum is a perennial herb, which is suitable for growing at about 20℃. Its flowering period is September-June+065438+1October every year. Its leaves are rectangular or lanceolate, and its flowers are head-shaped, with rich colors, such as purple, yellow and white.

3. Osmanthus fragrans

Osmanthus fragrans blooms in September-65438+10 every year, and the fruiting period is March of the following year. Its flowers are small and unique, and when it blooms, it will give off a strong fragrance, which is refreshing. There are many kinds of plants, mainly including Sijigui, Dangui, Yin Gui and Jingui.

4. Ginkgo biloba

Ginkgo biloba is a deciduous tree with fan-shaped leaves, light green color and no fluff on the surface. In autumn, the color of leaves will change from green to golden yellow, and the growth rate of plants will be slow. Generally, it blooms in April-May and begins to shed leaves after 10 months.