How to raise gardenias in the north? How to solve the yellow flower leaf loss of gardenia?

Gardenia yellow leaves and falling buds have always been a problem for people, especially in the northern regions. 1) Alkaline soil: Gardenia is a southern flower, which prefers slightly acidic soil, so that its soil pH remains slightly acidic.

It is necessary to pour some alum fertilizer water (ferrous sulfate; Cake; Water, fermented in January yellow-green with water application) or direct ferrous sulfate with water, grass soaked in water, vinegar mixed with water can be effectively prevented from alkalinity. 2) Someone bought a gardenia for a few days and there was a yellow leaf phenomenon. Gardenias like moisture and ventilation, are resistant to shade and light, and like water but are afraid of stagnant water.

3) Gardenias are shade-tolerant, but they cannot be completely shaded or exposed to the sun, so they should be placed in a place where they can receive sunlight in the morning and evening and avoid the harsh summer at noon. In winter, it is placed in front of the sunny window.

4) Pests and diseases: When diseases occur, spray carbendazim 500 times, 2-3 times in a row, gardenia insect pests are less, as long as the environment is ventilated, it can effectively prevent the occurrence of pests and diseases. That's all there is to it.

<> "Gardenia Yellow Leaves Teach You.""Get the right medicine"

Yellow leaf symptoms due to environmental changes: A small number of leaves in the middle and upper parts of the gardenia appear to turn yellow when the gardenia is newly introduced or moved back indoors. Reason:

The plants are acclimatizing to the environment, and the merchant may have treated too many roots before shipping, resulting in damage to the root system or reduced ability to absorb water.

Response: Put gardenias in a semi-shaded and ventilated environment and water them normally. Don't fertilize it for a while, let it adapt to its "new home", and also allow the root system to be repaired. If there are more yellow leaves, it is recommended to remove some or even all of the flower buds to save nutrients and grow new leaves.

Symptoms of drought yellow leaves: the leaves are dark and dull, drooping and unenergetic, and the old leaves at the bottom are the first to turn yellow, curl and fall off, and gradually spread upward. Reason:

If the watering is not timely, or the gardenia has not been potted after the pot is changed, the root system cannot absorb enough water. Response: Cut off the yellow leaves, water them thoroughly in time, and soak them if necessary.

Symptoms of stuffy roots and yellow leaves: the bottom leaves continue to turn yellow for a long time, and the black tips and black edges grow black spots, and a large number of leaves and buds will be lost. Reason:

The potting soil is too wet, and the root respiration is blocked. If the gardenia continues to yellow and lose leaves within a month, and watering is useless, it is basically certain that there is a problem with the root system.

Response: The first thing is to move the gardenia to a well-ventilated place, suspend watering, and dry the potting soil. Then check whether the root system is damaged, and if the condition is mild, you can pour carbendazim or mancozeb solution once.

If the root system is seriously rotten, it is necessary to quickly prune the rotten roots, change the pot and replant the soil.

Symptoms of iron deficiency yellow leaves: the new leaves are yellow, the veins are green, and the veins also turn yellow in the later stage. Reason:

The alkalinity of the irrigation water or the alkalinization of the soil causes the plants to lack iron and cannot synthesize enough chlorophyll, which is good enough, resulting in yellowing of the leaves. It is more likely to happen in the north. Coping:

Regularly use ferrous sulfate solution to irrigate the roots, if the situation is serious, it is recommended to change the pot and soil directly. After the occurrence of iron deficiency yellow leaves, the yellow leaves should be treated first, and other fertilizers should be applied after the leaves turn green.

Symptoms of fertilizing yellow leaves: After fertilization, the leaf tip and leaf margin appear black-brown. The leaf surface is thick and dull, and the old leaves gradually wither and fall off. Causes: Fertilizer is too concentrated, or fertilizer that is not fully fermented.

Response: Quickly dilute the fertility of the soil. If liquid fertilizer is applied, use plenty of water to irrigate the roots, rinse several times, and dry the pots to prevent waterlogging.

If you used solid fertilizer before, dig it out as much as you can, and then rinse the soil. If these methods are useless, then simply cut off the buds and re-cultivate them.

Symptoms of lack of light yellow leaves: the overall leaves are yellow, the stem nodes are elongated, and the branches are weak, giving people a feeling of yellow muscles and thin muscles. Reason:

Long-term lack of light means that plants are unable to produce enough chlorophyll and nutrients through photosynthesis, resulting in plant malnutrition. Response: Move the gardenia to a sunny environment, such as a south-facing balcony or windowsill.

It blooms in June and July, and after you change the pot, there is some damage to the roots of the flower, and it is now self-regulating, and it should be fine after a while.

Yellow leaves can be removed.

It should be placed in a well-ventilated, brightly lit place or under diffused light, and should not be too shaded and poorly ventilated.

Watering should be carried out when the pot soil is dry, that is to say, the surface of the pot soil is slightly dry when the watering, it is best not to have a regular interval, because the watering is affected by the factors such as cloudiness, air humidity, air temperature, etc.

Lack of fat yellow is manifested in the color of young leaves becoming lighter, yellowish or light green, while old leaves are more normal or gradually turning from green to yellow.

Usually apply thin fertilizer and water some alum water at the right time. Gardenia soil: Gardenia is fond of slightly acidic soil.

Gardenias are generally slippery in May and are very easy to raise. Generally raised outdoors, yellow leaves are iron deficient, mix a small amount of ferrous sulfate with water, and water every few days. Half a month will get better.

1.Make sure you get plenty of sunlight and place your gardenias on the balcony; 2.The right amount of water, gardenias are not easy to grow in soil with too much moisture, and watering should be moderate.

First of all, you should water the gardenia on time every day, and then you must also fertilize it every month and let it shine until the sun shines every day. In this way, there will be more blooms in the coming year.

Clause.

1. Sour soil culture, gardenia needs to scatter light, so it likes sour soil, if the soil is alkaline, it will make gardenia unable to absorb iron well, which has a great impact on the formation of chlorophyll, and further causes flower branches to wither and even die; Therefore, the soil must be loose, fertile and acidic, and some substances with such an effect can also be added to it. Soil: Gardenia is an indicator plant of acidic soil, so the slightly acidic environment of the soil is the key to determining the growth of gardenia.

The culture soil should be mixed with 7 parts of slightly acidic sandy loam laterite and 3 parts of humus. It is advisable to control the pH value of the soil in between.

Clause. Second, placed in a cool place, gardenia must not be exposed to the scorching sun, otherwise it will cause the leaves to wither yellow, but it is not said to be placed in the full shade, because it has a certain demand for light, it is best to be placed in a place to maintain 60% of the daily light, in addition, after entering April, fertilization should be carried out twice a month.

Clause. 3. Air humidity, gardenias like moisture, so the air can not be too dry, according to expert statistics, if the air humidity is lower than 70%, it will affect the normal opening of flowers, but if it is too wet, it will cause rhizome rot and yellowing leaves, so in addition to normal watering, it is necessary to spray water frequently nearby, another problem to pay great attention to, water can not be watered too much, otherwise it will affect the growth, so how should gardenia be watered?

When you see that the soil is dry, knock the pot with your hand, if there is an empty sound, you need to water, the bottom of the pot starts to leak and stop, the watering is best to add some eggs, soy milk, etc., which is more conducive to growth.

Clause. Fourth, the key to fertilization, gardenia likes fertilizer, but can not add too much fertilizer at one time, must be thin fertilizer more, must not be greedy, otherwise it will cause thick branches, large leaves, thick green, it will lose its own appreciation effect.

Clause. Fifth, temperature requirements, the growth temperature of gardenia can not be too low, because it likes temperature, generally speaking, the temperature during the growth period is 18 to 22 degrees is better, 5 to 10 degrees in winter, if it is lower than minus 10 degrees will be frostbitten, which should be paid special attention to in the north.

Clause. Sixth, proper pruning, gardenia is very easy to grow branches luxuriant, and cause impermeable and disorganized feeling, which will cause nutrient dispersion and ornamental deterioration, so it needs to be pruned, pruning is best to choose 3 main branches, and at any time to cut off the root tiller germination of new branches, after the flower branch should be cut in time, in this way, under the cut will germinate new branches. When the new shoots have grown three knots, they should be topped to avoid blind growth.

If it's the north, it's hard to feed.

The yellowing of gardenia leaves is usually caused by overwatering.

At this time, you should stop watering and remove the yellow leaves from the branches. When planting gardenias, it is important not to let there be stagnant water in the pot when watering, so it should be watered many times and in small amounts.

If the gardenia has just been bought, and the yellow leaves appear without too much watering, it may be a lack of fertilizer, and some ferrous sulfate plant fertilizers can be purchased to apply. Gardenias are leafy plants and should be placed in a well-lit and well-ventilated environment.