Is the yellowing of plant leaves in winter due to freezing?

Normal metabolism. This is a normal situation, so don't worry too much, just dispose of the yellow leaves, and it will return to normal after a while.

Lack of nutrients. This is the same as people, if the nutrients are not sufficient for a long time, people will also be thin and shriveled. Therefore, when the plant does not have enough nutrients for a long time, the leaves will also appear yellowing.

At this time, nutrients should be supplemented according to the state of the plant. If it is a dormant plant, it is not recommended to fertilize it immediately, or even to fertilize it. If the growth is slow, a small amount of fertilizer can be applied, and fertilization should be strengthened during the growth period.

Improper moisture. Too much or too little water at any time will cause the leaves of the plant to turn yellow. It is more serious in winter, because the environment in winter is dry, and then the potting soil is too dry, so it is difficult not to yellow; In winter, when the temperature is low, the loss of water will be greatly reduced, and if you need to water too much at this time, the soil will be in a state of excessive moisture for a long time, which will also easily make the leaves yellow.

The temperature is too high. When placing plants at home, be sure not to be close to the air outlets of heating and other equipment, otherwise it is easy to cause yellowing of plant leaves.

The temperature is too low. Plants have a minimum temperature limit, the temperature is already below the range that the plant can tolerate, its leaves are prone to yellowing, and even the whole plant can be frostbitten and freeze to death. Therefore, friends must understand what the temperature range of the plant can withstand when maintaining.

Hello dear, the yellow leaves will appear in the winter-resistant winter of the ground planting, which is often caused by improper fertilization, improper watering, and excessive light. Raise. Farmers should immediately stop fertilizer, dilute the fertilizer damage in the soil with water, reduce water irrigation, and keep the soil dry and wet.

Build a sunshade for winter resistance to avoid direct exposure to strong light and sunburn the leaves again. Do you think there's anything else you can help with?

Plant mesophyll cells contain three main pigments: chlorophyll, lutein, and carotene, and the synthesis of these three pigments is related to temperature. When the temperature drops in autumn, the secretion of carotene increases, and carotene is orange, so the leaves turn yellow or red.

Specifically, all the trees of the maple family are of this type.

There are Acer truncatum, Acer pentagonalis, Sugar maple, Acer chalia, Acer occotics, Acer camphor leaves, Acer chinensis, Acer japonica, Acer fictitus, etc.

In addition, other tree species include:

Ginkgo biloba, torch tree, cog. cog. cog., cog. cog.

The sudden yellowing of the leaves of the iron tree in the cold winter is greatly related to the cold, but indoor planting also has a great relationship with watering.

Iron trees like warmth and are not very cold-tolerant, so outdoor iron trees planted in winter should be warmed and frost protected by straw bandaging or plastic film covering. After the iron tree has anti-freezing measures, it is not suitable for the leaves to be frozen and yellowed, which is conducive to the safety of the iron tree in winter.

The problem of being frozen at room temperature may be caused by excessive watering of the iron tree, because the iron tree does not need more water after winter, and it is easy to cause the symptoms of rotten roots and yellow leaves when watering too much.

The yellow leaves of the more serious iron tree can be properly pruned, antibiotic drugs can be used to prevent and control the occurrence of diseases, and the leaves can be sprayed with 1000 times of liquid Duoyinling or Tobuzin to prevent diseases.

Yellowing is a manifestation of plant wilting, is a sign of death, I also raise iron trees, a pot in the yard without any cold measures, this year is very cold, the leaves are drooping, withered yellow, and a smaller pot in the house is good.

1. Lack of fertilizer and materials, especially nitrogen fertilizer, and yellowing of malnourished leaves;

2. Light-loving plants lack light and their leaves turn yellow;

3. If the light of shade-loving plants is too strong, the leaves will also turn yellow;

4. Autumn has arrived, the temperature drops, and the leaves naturally turn yellow.

5. If you have yellow leaf disease, you can use ferrous sulfate to pour the leaf surface, which is the first yellow leaf disease of filial piety.

6. Normal cell senescence, 6. Overwatering.

7. Drought. 8. When the potting time is up, the potting soil is agglomerated and not aerated, which affects the plant's access to nutrients.

Hello. It may be that the indoor temperature is too low, causing the yellow leaves of the houseplants to appear before caution. It is recommended to cover it with a plastic and filial piety cloth at night in order to increase the night temperature.

Hope it helps. Hope.