What s wrong with yellow gardenia leaves?

Friends who have raised gardenias know that gardenias are very easy to yellowing leaves, there are many reasons, a flower friend who has raised gardenias for 10 years, summarized some of the reasons why gardenia leaves are yellow, you can compare them according to your own situation, and then solve them in a targeted manner, you can do not ask for people, and you can also solve the problem of yellow leaves.

1. Overwatering.

The manifestations are: the yellowing of the leaves is from bottom to top, the old leaves are yellow first, the leaf veins are green, and then gradually the whole area is yellow.

Low temperature water yellow. Causes: Poor indoor ventilation. The potting soil is too sticky, too fine, permeable, and has poor air permeability, as well as good soil moisture retention and excessive watering. Watering the bubble pot too often. Sudden cooling of the soil when it is wet.

The potting soil is too sticky, resulting in a lot of water.

The new pot is too large, the new fill layer is too thick, and the root system of gardenia in the slow seedling stage cannot reach the edge of the pot. The branches and leaves at the bottom layer are too dense, which affects the ventilation of the soil surface. Sandwich soil, the outer layer of loess in the nutrient soil in the new pot, or the inner loess and the outer nutrient soil.

Extremely cold air-conditioned room in summer. Flower pots have poor air permeability and poor heat dissipation.

You can judge according to your own situation, it may be caused by one reason, or it may be caused by multiple reasons, and then you can determine how to solve it.

2. Excessive fertilization.

The performance is that the veins of the old leaves of gardenia are yellow, but the surrounding area is still green.

Cause: The concentration of fertilizer applied to gardenias is too large.

Solution: If you find this situation, you should change the water blister pot (many times) as soon as possible, or irrigate the roots, that is, use very fine water to water all the time, about half an hour, the purpose is to dilute the overly concentrated fertilizer in the soil.

3. Iron deficiency yellow.

The manifestations are: the new leaves of gardenia are yellow, specifically the veins are green, and the mesophyll is white-green.

Cause: Lack of iron.

Solution: Use alum fertilizer water (ferrous sulfate, dried manure, cake fertilizer and water, press 1:3:

The ratio of 5:100 is prepared, and the black-green liquid becomes after full fermentation) or ferrous sulfate and white vinegar spray leaves or direct watering, the effect of alum fertilizer water is obvious, and the roots are significantly improved after a few days.

4. The soil is alkaline.

Most flowers in the south prefer acidic soils, while the soil in the north is alkaline, which will cause the gardenias from the south to suffer from alkali damage and cause yellowing of leaves.

Solution: Replace the cultivation soil with peaty soil or sulfur powder. These southern flowers and trees should be watered with ferrous sulfate once a week; Keep the potting soil loose and drained smoothly; Or soak the grass in water, and after the grass rots, water the flowers with supernatant to reduce the occurrence of alkali damage.

5. Hard water in the north.

In addition, most of the water in the north is hard water (refers to water containing more soluble calcium and magnesium compounds), and the common use of hard water to water flowers will promote the increase of lime content in the soil and compaction, which is not conducive to the growth of the root system, and at the same time cause the leaves to gradually turn yellow and wither.

Solution: Vinegar water can be poured 1 time every 2 3 weeks, or it can be sprayed on the plants by adding 2 tablespoons of vinegar to 1 liter of water, which can prevent the leaves of gardenias in the south from yellowing and make them grow better.

6. Other reasons.

The two new leaves are obviously tender and yellow, which is a lack of fertilizer.

Root arthropodes invade the root system and cause malnutrition.

Gardenia is an acid-loving plant, in addition to watering, fertilizer and other factors will cause gardenia yellow leaves, there is also a yellow leaf reason: iron deficiency yellow leaves, in daily watering can add ferrous sulfate with water to water gardenias, can effectively avoid iron deficiency yellow leaves.

The yellowing of the leaves is likely to be caused by improper watering, so you must take care of the condition of the soil when watering, if the soil is wet, do not water, and pay attention to the frequency and frequency of watering.

This may be due to a lack of water or an insect infestation. We need to hydrate it in a timely manner. If it's because of insect infestation, we need to clean these yellowed leaves and spray them with pesticides.

Gardenia leaves turn yellow due to overwatering, low temperatures, and sticky soil.

1. Overwatering.

Gardenias like moisture, but are not resistant to moisture. If the gardenia is watered frequently, it will cause a lot of water in the soil, which will be more humid, causing the roots to be unable to breathe, and even cause the root system to rot, unable to absorb water and fertilizer normally, and in the long run, it will naturally cause gardenia yellow leaves.

Gardenia watering needs to see dry and wet, generally wait for the soil to dry before watering, when watering too much, need to suspend watering, loosen the soil in time, put it in a ventilated place, promote the slag posture to evaporate and discharge the water.

2. The temperature is too low.

Gardenia is not cold-tolerant, suitable for growth in a warm environment, the leaves should be moved indoors after yellowing, if it is planted in the ground, the roots of the gardenia can be covered with straw or film, which plays a role in heat preservation.

3. The soil is too sticky.

If the soil is too sticky, it will cause the gardenia leaves to turn yellow, and the plants need to be dug out of the soil and replaced with loose, well-drained soil to replant the gardenia into the soil.

Gardenia planting precautions

When planting gardenias, it is usually a mixture of humus, garden soil and peat soil, and pay attention to the pH value of the soil, generally in between, and choose a mud pot with good ventilation and drainage function for the flower pot.

When watering gardenias, be careful not to use tap water for direct watering, you need to place it for 2-3 days before using it, so that the harmful gases in it can fully volatilize, and when the air is dry in summer, you should often want to spray water mist on the foliar surface to improve air humidity.

Gardenia is a very light-loving flower plant, during the maintenance period to ensure at least 8 hours of sunlight every day, but pay attention not to direct sunlight exposure, winter gardenias will generally enter a dormant state, such as cracking need to be placed in a warm indoor maintenance.

Gardenia leaves turn yellow due to overwatering, strong sunlight, and insufficient nutrients.

1. Overwatering

Gardenia leaves yellowing, may be caused by overwatering of the plant, gardenia poor waterlogging tolerance, if watering water is not done to see dry and wet, it will cause water rotten roots, and affect the normal delivery of nutrients, resulting in yellowing leaves.

2. The light is strong

Gardenias need sufficient sunlight during the growing season to strengthen the photosynthesis of leaves, but avoid long-term strong light exposure, otherwise yellow spots will appear on the leaves of the plant, which will affect the healthy development of gardenias.

3. Insufficient nutrients

The normal development of gardenia requires a certain supply of nutrients, if there is no nutrient supplement for the plant for a long time, it will easily cause the leaves to yellow and dry, it is best to apply nitrogen, phosphorus and potassium compound fertilizer to gardenia once a month.

Resolution.

1. Adjust the pH value

Gardenias like acidic environment, long-term watering of tap water will lead to soil alkalization, affect the growth of plants, so that the leaves are yellow, at this time to water the gardenia with a diluted vinegar solution, or apply diluted ferrous sulfate to the potting soil, the pH value of the soil is adjusted between.

2. Replenish water

Gardenias grow mostly in the south of the climate is humid and warm, the demand for water is higher, long-term watering is not diligent will lead to yellowing leaves, at this time to water along the edge of the pot, soak all the soil, and in dry weather, to spray water mist on gardenias, to keep the ambient humidity at about 80.

3. Dilute fertilizer

If the leaves of the gardenia appear yellow in the center and green at the edges, it means that the plant is damaged by fertilizer, so it is necessary to pour large amounts of water into the potting soil, dilute the fertilizer, and then tilt the pot to drain the excess water and fertilizer from the pot, and then place the gardenia in a ventilated place for maintenance, and Toga uses the wind to evaporate the water in the potting soil.

Causes of yellowing of gardenia leaves: alkaline soil, impermeable soil compaction, iron deficiency, magnesium deficiency, excessive and concentrated fertilization, excessive watering, improper light, frostbite.

1. The soil is alkaline

Gardenias are acidic soil-loving plants, and if the potting soil pH is alkaline, it is prone to yellow leaves. The soil and water in the north are alkaline in many areas, and the salt content is relatively high, and long-term growth in this environment is easy to lead to yellowing of plants, which will eventually affect flowering.

2. The soil is compacted and not breathable

Gardenias like loose and breathable soil, and if the soil is too sticky, or if the air permeability is poor, it is also easy to cause yellowing of the leaves.

3. Iron deficiency

Gardenia has a high demand for iron, and if there is a lack of iron, the new leaves of the gardenia will turn yellow first, and the veins will be yellow or white in severe cases (iron is not easy to transfer, so the old leaves are generally green).

4. Magnesium deficiency

If magnesium is deficient, the old leaves will turn yellow, and then the new leaves will turn yellow, and the veins will still be green.

5. Excessive fertilization

Fertilization is generally thin, fertilizer is applied frequently, if the fertilizer is too much, or the fertilizer is too thick at one time, it is easy to burn the roots and cause yellow leaves, and even plant death. It is generally characterized by brown at the tips of new leaves, and scorched yellow and shedding of old leaves.

6. Overwatering

Gardenias should not be watered frequently, avoid stagnant water, which may lead to root rot. At this time, the young leaves generally begin to turn yellow, and the old leaves have no obvious changes.

7. Improper lighting

Some will develop the macula. It should also not be shaded for a long time, otherwise the plant is prone to leaf loss and yellowing.

8. Frostbite

If the temperature is too low, gardenias can also suffer from frostbite, causing the leaves to turn yellow.

1. Improper moisture.

If the usual watering is not enough, it is possible to make it produce yellow leaves, in addition, in the planting process should not be too much watering, the pot water or pot soil is too wet, will cause the young leaves to be dull, slow growth, old leaves are yellow-green, gradually withered.

2. Improper lighting.

Too much or too much light can cause the leaves to turn yellow. If you are exposed to direct sunlight for a long time, yellow spots will appear on the leaf surface, but if you put it in a shady environment for a long time, the leaves will fall off because you can't get enough sunlight, so you should make up the light in time.

3. Improper fertilization.

During the planting process of gardenia, the fertilization concentration will cause the plant to turn yellow, the tip of the new leaf will be yellowish-brown, the leaf surface will be uneven and dull, and the old leaves will gradually wither and fall off.

4. The temperature is too low.

Gardenias can tolerate low temperatures, but too low temperatures can cause yellowing of leaves. In the process of gardenia maintenance, it is easy to get frostbite in winter, and if you do not take warm measures at night in early spring and early winter, it is easy to frostbite the plant.

Solution: 1. Slowly adapt to the environment.

Most of the gardenias that have just been bought back from the market are taken out of the greenhouse and need to be adapted to a new environment. If the environmental difference is too large, it will cause yellow leaves, which is an uncontrollable factor. Therefore, the yellowing of the leaves should be observed for a period of time, and the maintenance should be taken care of during this period.

2. Reasonable watering.

If there is a shortage of water, replenish it in time, and if there is too much water at ordinary times, reduce the frequency and amount of watering.

3. Acidic water is more suitable.

Gardenias prefer acidic soil, and the tap water in the addition is alkaline or neutral, so they often add some acidic substances when watering, such as edible vinegar and citric acid.

4. Open windows for ventilation.

Gardenias that are maintained indoors need to be ventilated frequently to ensure that the environment is bright, and the plants should be placed by the window for maintenance.

The yellowing of gardenia leaves is due to too much water, insufficient nutrients, and too low temperature.

1. Too much water.

Gardenias prefer to grow in a moist environment in the early chain, but it is not tolerant to waterlogging, and its leaves are prone to yellowing if it is overwatered or the air humidity is too high.

2. Insufficient nutrients in bridge hail.

The yellowing of gardenia leaves may also be caused by a lack of nutrients, and if it lacks iron, the plant will not be able to synthesize chlorophyll, so it will turn yellow. If magnesium is deficient, the leaves of the plant will also turn yellow.

3. The temperature is too low.

Gardenias prefer to grow in warm environments, it is not tolerant to low temperatures, and if the temperature is too low, it will cause frost damage to the plant, and its leaves will also turn yellow.

How to care for gardenias

In view of the problem of excessive moisture, it is generally necessary to do a good job in ventilation management, usually open windows frequently, facilitate air circulation, let the excess water evaporate quickly, and then also need to control watering, each time the amount of water does not have to be too much, keep the soil slightly moist. In view of the problem of nutrient insufficiency, iron deficiency can be sprayed with ferrous sulfate aqueous solution for prevention and control, and magnesium deficiency can be sprayed with minsuifan boron magnesium fertilizer for prevention and control.

In view of the problem of low temperature, it is necessary to take warm measures in winter, it is best to move the gardenia to a warm place indoors for maintenance, it is recommended to put it in the bedroom, so that when the heating or air conditioning is turned on, you can take care of the needs of gardenia insulation, and you can also freshen the air in the bedroom and smell the fragrance of gardenia at any time.

Summary. There are two main reasons for the yellowing of gardenia leaves.

There are two main reasons for the yellowing of gardenia leaves.

The details are as follows: 1. Excessive watering of gardenia yellow leaves is mostly caused by excessive watering, stop watering and remove the yellow leaves. 2. Poor ventilation and lack of sails will lead to gardenia yellow leaves, in the chain of home to put gardenias in a sunny and well-ventilated place, can not be exposed to the sun to open the window for ventilation.

Pro, warm tips: There are pregnant women in the spring family to try to avoid contact with gardenias, pregnant women's physique is weaker than the reed, gardenias will exude a strong fragrance, this fragrance will bring people dizziness and vomiting symptoms after smelling for a long time, so try to avoid the contact between pregnant women and gardenias, which is good for pregnant women and the baby in their wombs.