What if the leaves of the rich tree (melon chestnut) turn yellow? If we find out the reason, we can solve it!

Rich tree called Gua Li, is Malvaceae kapok plants, meaning "rich", 4-5 meters high, tree shaped like an umbrella, more shade-tolerant, simple maintenance, very suitable for indoor cultivation. Although the maintenance is simple, but improper maintenance will still appear the situation of yellowing leaves, then, the rich tree leaves yellowing how to do? In fact, as long as you find the cause, you can solve it!

First, why does the rich tree have this name?

The fortune tree was introduced from abroad, and its English name is Pachira macrocarpa. Generally speaking, we will choose a Chinese name according to the pronunciation of its English name, so he is called "Pachela Makoro bar". The first half is read as "Fortune" by the Cantonese who first introduced it, and the second part is pronounced as "Malaba Chestnut", so this plant has two names. That is, the auspicious "fortune tree" and the somewhat inexplicable "Malaba".

Second, what if the leaves of the rich tree turn yellow?

First of all, it is necessary to find the cause of the yellowing of the leaves of the rich tree, and then we can prescribe the right medicine and find a solution. So, what are the reasons that lead to the yellowing of the leaves of the rich tree?

Reason 1: soil alkalization. The rich tree likes the acid soil, the soil is alkaline, and the plant will be malnourished due to the lack of soluble iron and other elements that can be absorbed by it, and the final result is that the leaves gradually wither and yellow.

Solution: adding a certain amount of ferrous sulfate to the soil can not only increase the soil fertility, but also acidify the soil. Be careful not to use vinegar, although vinegar can quickly make the soil sour, but because the change is radical, it will damage the organic matter in the soil and reduce the soil fertility.

Reason 2: direct light or excessive shade. Rich trees like the sun, but are not resistant to strong light, and the hot sun will cause scorch on the tips and edges of young leaves, or yellow shedding of leaves; they also do not like excessive shade, and if they are placed in shade or in places where there is not enough light, it will cause the new branches and leaves to grow young and yellow, the old leaves dull and shedding in large numbers.

Solution: if it is exposed to strong light, it is recommended to move the plant to a semi-shaded place, properly watered, the yellowing leaves will slowly fall off, waiting for new buds to grow; if it is too shaded, it is recommended to put the plant in the ventilated balcony or in a place with scattered light.

Reason 3: temperature is too high or too low. Rich trees like the warm environment, the suitable temperature for growth is 20 ℃ ~ 30 ℃, the temperature is too high, transpiration is too strong, the root water and nutrients supply is insufficient, the leaves will gradually dry up and yellowing; the temperature is too low, such as winter temperature below 16 ℃, the leaves are easy to yellowing, fall off, and die under 10 ℃.

Solution: if the temperature is too high, move the plant to a cool place in time, and sprinkle water to cool down; if the temperature is too low, raise the maintenance temperature appropriately to avoid plant frostbite.

Reason 4: too much watering. Rich trees like a humid environment, but too much watering will form stagnant water, resulting in lack of oxygen in the soil, hindering the normal respiration of the plant and the absorption of water and nutrients, seriously causing root rot, and after the damage, the young leaves turn yellowish first. then the old leaves gradually turn yellow.

Solution: immediately control watering, move the wealth tree to a ventilated place to loosen the soil and let the water in the soil dry quickly; you can also put a layer of towel or water on the sea at the bottom of the flowerpot and replace it with a new one when wet through; you can also blow it with a hairdryer; if it doesn't work, you can only change the soil.

Reason 5: too little watering. Because the rich tree likes the wet environment, if the watering is too little, the surface of the basin soil is cracked or the top of the basin soil is wet and dry, it will affect the root system's absorption of water, resulting in dull leaf color, first aging of the lower old leaves, and gradually withering and yellowing from the bottom up.

Solution: if the surface of the basin soil is cracked, it can be watered step by step, first wet the soil surface, water a little for an hour, and gradually water thoroughly, not at one time, lest the root will absorb water and expand and affect the growth.

Reason 6: excessive fertilizer or long-term loss of fat. The nutrients absorbed by the rich tree are quantitative, and if you apply too much fertilizer, the remaining fertilizer will burn the roots of the rich tree, causing the roots to rot, resulting in yellowing leaves; if you lose fertilizer for a long time, the lack of nitrogen and other nutrients in the soil will lead to thin branches and leaves and thin and yellow leaves.

Solution: if it is too much fertilizer, it should be watered in time to dilute the nutrients in the soil and reduce fertility. If it has rotted roots, it is necessary to remove the plant from the pot, clean up the rotten part, replace it with new soil, and replant it; if it is defertilized for a long time, pour the pot in time and replace it with new loose and fertile soil, or gradually increase the application of thin mature liquid fertilizer or compound flower fertilizer.

Reason 7: the branches and leaves are too dense. The growth ability of the rich tree is relatively strong, if the branches and leaves are too dense, the branches and leaves hidden at the bottom will turn yellow and droop because of lack of light and lack of ventilation.

Solution: part of the branch can be trimmed to make it ventilated and transparent.

Reason 8: strong sexual stimulation. The rich tree is strongly stimulated, such as excessive concentration of pesticides, or polluted by toxic gases, or sudden pouring of cold water when the temperature is high, which can easily cause the leaves to turn yellow and scorch, or even the whole plant to die.

Solution: rational use of pesticides, eliminate air pollution sources, do not pour cold water around noon in midsummer.

Reason 9: disease and insect damage. The rich tree is affected by diseases and insect pests, such as leaf spot disease, which will lead to yellow spots or patches on the leaves; suffering from shell insects, red spiders and other pests will also lead to local yellow withering or even shedding of the leaves.

Solution: to strengthen ventilation and timely spraying chemical control, if the plant wilt is very serious, it is recommended to buy a new pot.

Third, how often do rich trees are watered?

The rich tree is more resistant to water and moisture and slightly resistant to drought. When watering, touch its soil, wait until the basin soil is dry, and water it thoroughly. Basically, it is watered once a week in summer, once a month in winter, and once a month in spring and autumn. There can be no stagnant water, otherwise it will cause rotten roots.

Summer can be watered in the lower temperature in the morning or evening, the best in the morning watering, high temperature at noon, not watering; low temperature in winter, you can choose from 10:00 to 2 p.m. Watering is better; spring and autumn because the temperature and humidity are relatively suitable, you can choose to water in the evening before sunset.

The rich tree likes acidic water, so you can choose to water natural water such as Rain Water or river. if it is tap water at home, it is better to dry it for 1-2 days, or you can pour some nutrient solution at the right time, and you can not pour tea or beverage into it. it's bad for plant growth.

Conclusion: although the maintenance of the rich tree is simple, improper maintenance will also lead to yellow leaves, we can find the corresponding solution according to the specific reasons. The demand for water for the rich tree is not too great, it can wait until the basin soil is dry, and the number of times of watering varies from season to season; be careful, do not accumulate water, or else the roots will rot.