What s the matter with the yellow leaves of the rubber tree?

Reason for proper shading: Rubber trees are more afraid of bright light. If exposed to strong light, it is easy to grow poorly, which will cause the leaves to turn yellow and fall off. Solution: Shade the rubber tree in summer.

Reason for hydration: The growth of rubber trees is inseparable from adequate water. Lack of water can cause the leaves to turn yellow, and long-term lack of water can also cause the leaves to fall.

Solution: Water the rubber tree in a timely manner. Reasons for raising the temperature:

Oak trees are suitable for growing in warm environments. Low temperatures can cause the plants to get frostbitten, which causes the leaves to turn yellow and fall off. Workaround:

Keep the rubber tree indoors in winter.

The rubber tree generally refers to the Indian ficus. Indian Ficus (scientific name: arbor, 20-30 m tall, DBH 25-40 cm; The bark is grayish-white and smooth.

The twigs are stout. Leaves thick leathery, oblong to elliptic, entire, surface dark green, shiny, back light green, lateral veins numerous, indistinct, parallel exhibition.

The bark tree is native to India and Malaysia, and is now cultivated in many parts of China. It prefers high temperatures, humidity and sunny environments, and can also tolerate shade but not cold. The following is an introduction to the planting method of rubber trees, and you can see and do it yourself according to the situation.

When the rubber tree is potted, it is advisable to use 1 part of humus soil, 1 part of garden soil and 1 part of river sand, and add a small amount of base fertilizer to prepare culture soil. It grows very quickly in hot and humid environments, producing one leaf every 5 to 10 days, during which it is necessary to ensure adequate fertilizer and water. Generally, liquid fertilizer or compound fertilizer is applied 1 or 2 times a month while maintaining high soil moisture.

In autumn, gradually reduce the frequency of fertilization and watering to promote plant growth and fullness, which is conducive to overwintering. Rubber trees like strong sunlight and should be cultivated in the sun throughout the growing season from spring to autumn, and in winter they should also be placed in strong light. But it is also shade tolerant and is better when cultivated indoors in low light. In addition, in order to make the plant grow evenly and ensure good plant shape, topping is carried out when the seedlings grow to a height of 50 to 80 cm to promote the germination of lateral branches; After the side branches grow, select 3 5 branches, and then prune the side branches briefly once a year, and after 2 or 3 years, you can obtain a larger plant with complete shape and round plumpness.

This one I copied (know).

Because it's yellowed by the sun! Hee-hee.

One is not ventilated, and the other is caused by overwatering.

The cause of yellowing of rubber leaves is soil compaction, improper watering, improper ventilation, and lack of nutrients.

1. Soil compaction

If you do not change the soil for a long time, the soil will be easy to compact, the permeability will deteriorate, and the leaves will turn yellow and may even fall off after a long time. It is recommended to change the soil as soon as possible and replace it with a loose, breathable, and fertile substrate, so that the plants can grow vigorously.

2. Improper watering

It prefers to grow in a moist environment, and if it is not watered for a long time, the soil will be too dry and the leaves will turn yellow. Of course, too much watering is not good, especially in the high or low temperature season, the amount of water is slow to absorb, easy to soak, and the leaves will turn yellow and fall. If the soil is dry and short of water, replenish water as soon as possible to make the soil moister.

If the water is heavy, stop the water and ventilate more to evaporate the water.

3. Improper ventilation

If it is placed in an indoor poorly ventilated environment for a long time, it will also hinder growth, easy to yellow leaves, and fall leaves. Because the stuffy environment will accumulate a lot of harmful gases, it is unbearable. The windows should be opened as soon as possible and ventilated more often to make the indoor air fresher, so as to facilitate recovery and growth.

4. Lack of nutrients

Rubber trees have a high demand for nutrients, and if they are not fertilized in time during the peak growing season, they will have poor growth due to lack of nutrients, and the leaves are easy to yellow. Fertilizer should be supplemented as soon as possible, and it is best to apply the diluted fertilizer solution, and the nutrients will grow better.

Rubber tree breeding temperature:

Rubber trees prefer to grow at temperatures above 15 degrees Celsius. It is one of the plants that is resistant to high temperatures, and it is able to grow normally even when the temperature reaches 35 degrees Celsius. But if the temperature drops below 15 degrees Celsius, it will go into a half-burn dormant period.

Therefore, at this time, friends in the north must maintain rubber trees indoors.

And it's best not to move the potted plants out of the house until April. Even if you are maintaining it indoors, you should pay attention to keeping warm. If the heating and air conditioning are not turned on, the indoor temperature needs to be at least 5 degrees Celsius.

There are two possibilities: one is that the roots are rotten after watering too much, and the other may be caused by insufficient light.

Your rubber tree may have rotten roots. If the root doesn't have a black smile, then it can be relieved with less watering. If the roots are already black, it means that they are almost rotten, and they can only be pruned and replanted.

If you want to replace the pot with a tile pot, it will not rot the roots. If it is too ugly, you can put a porcelain pot or purple sand basin on the outside.

There are several main reasons why rubber trees have yellow leaves:

1. It is the soil compaction caused by the plant not being repotted for a long time. Rubber tree needs to be repotted once a year in the early stage of growth, the pot diameter should be larger year by year, after growing 6 8 years can be repotted once every three years, if you do not change the pot for a long time, the potting soil will be seriously compacted, and the soil aeration condition is poor, resulting in the suffocation and necrosis of the fibrous roots of the rubber tree, which can not absorb water and nutrients, causing the plant leaves to wither and fall off.

2. The plant has not been fertilized for a long time, and the rubber tree likes to be fat and watery, and if it is not fertilized for a long time, it will cause malnutrition and cause the leaves to turn yellow.

3. The temperature is low in winter. The minimum adaptation temperature of rubber trees is 6 8 degrees or more, and if the room temperature is lower than 5 degrees in winter, the leaves will be yellowed and fall off.

4. It is too much watering or fertilization. Although the rubber tree is a water-loving and fertilizer-loving plant, if it is watered and fertilized too much, especially between August and September, when the weather is still relatively hot, too much watering will cause water to form in the pot; Or it is overwatered during wintering, and the plant is in the dormant period, the transpiration is reduced, and the water in the pot cannot be discharged in time; Or mistakenly watered raw fertilizer, large fertilizer, thick fertilizer, will cause root rot due to water damage, fertilizer damage, resulting in yellowing of leaves. If it is a rotten root caused by fertilizer, the roots will be accompanied by an unpleasant odor.

5. The indoor air is too dry, and the moisture of the potting soil is not enough for the transpiration of all the leaves, resulting in the yellowing and even falling off of some leaves, especially the old leaves in the lower part.

6. Poor indoor ventilation. If the room is not ventilated for a long time, some harmful gases are accumulated, such as high carbon dioxide concentration, and yellow leaves will also occur.

7. It is a long-term shade. The rubber tree is a tropical tree species, which likes full sunlight and is not tolerant to shade, and if you do not see sunlight indoors for a long time, you will also have yellow leaves.

8. It is possible to be infected with gray mold.

There are many reasons for this, and here are a few of them:

1. Rubber trees like high temperatures, and the indoor temperature should not be too low in winter, not lower than 10 degrees. It grows most rapidly in summer.

2. Like the sun, do not ignore the sensitivity in the shade, it is easy to cause yellowing of the leaves.

3. The number of watering should not be too diligent, it is better to dry the soil in the pot, in view of the winter, only the simple source needs to be sprayed on the leaf surface with a small watering can. If you water too often, it is easy to cause yellowing of the foliage and leaf loss.

4. Do not apply fertilizer indiscriminately, the usual rice washing water or waste milk is the best fertilizer.