What should I do if the gardenia doesn t bloom and the leaves are black?

Gardenias have buds for more than a month, but they don't bloom, what should I do if the leaves are black?

The potting soil of this gardenia is obviously very wet, and it is maintained indoors, the ventilation conditions are not very good, the potting soil is too humid, it is easy to stuffy roots, the root system is damaged on the leaves, and the leaves are dry and tipped, and the phenomenon of withering should be increased to the gardenias, so that the potting soil can be dry and wet cycle, strengthen the light, give sufficient light in spring, autumn and winter, and appropriate shade at noon in summer. in order to grow vigorously and the plant is robust.

Clause. 1. Temperature.

This pot of gardenias of flower friends should have bought gardenias with flower buds. The temperature of gardenia maintenance in winter must be sufficient, and the temperature must be above 15 degrees. If the temperature is too low, the gardenia will not grow in a semi-dormant state, and certainly will not bloom.

Clause. 2. Poor ventilation.

Gardenias like a well-lit and well-ventilated environment, and gardenias that are maintained indoors in winter must have poor ventilation conditions, so they close their doors and windows. At this time, you must pay attention to watering, wait until the surface of the potting soil is dry, and then water it after the surface of the potting soil is dry. The subject's gardenia pot is relatively wet, and then the ventilation conditions are not good, which is the main cause of dry leaves and black leaves.

In this case, the potting soil must be dried in time, and then carbendazim or mancozeb should be added when watering again, and watering and spraying should be done in a ratio of 1:1000. Every 10 days or so, about two or three times can change the phenomenon of rotten leaves.

I raised two large pots of gardenias, one of which was placed in the corner, and soon there was a phenomenon of dry leaves and black leaves. The other pot is placed by the window for maintenance, because there is heating in the room, and the window is often opened for ventilation, so this pot of gardenias grows very well, and the growth of the buds is obviously fast.

Clause. Third, the light must be good.

For a gardenia to bloom, it must be given plenty of light. Although gardenias are shade-tolerant, gardenia leaves grow well in insufficient light, but they do not bloom. The gardenias we feed only give them proper shade in the summer, and they can be given plenty of light in other seasons.

This gardenia does not bloom for more than a month, mainly due to poor ventilation, overwatering, and insufficient light.

Gardenias are raised in water, prune the bottom of the gardenia to reveal fresh branches, take a vase and pour water into it, and change the water once a day.

This is a normal phenomenon, because the newly bought gardenia has not yet adapted to the growth environment and returns to normal after half a month, and the black leaves are cut off with scissors.

1. Watering. If you water too much, it will cause the mast flower leaves to be dull and dull, and even wilt in severe cases, so you need to stop watering, put the pot in a ventilated and cool place, or change the soil and replant.

2. Illumination. If the light is too strong, the leaves will have yellow spots, so you only need to move them to a ventilated and cool place to maintain them, and they will gradually recover. When the sun is insufficient, the leaves will gradually turn yellow or even fall off, so it is necessary to move the gardenia to a sunny place to replenish the sun.

3. Fertilization. If you apply too much fertilizer, the leaves will be thick and dull, and some of the leaves will burn and fall off. At this point, fertilization should be stopped immediately, either by flushing the soil to reduce the concentration, or by changing the soil.

Gardenia is not called Huangji, mountains, leaves, leaves are bright, always green in all seasons, flowers are large, perfume is abundant, there is a food and anti-poisonous gas. What am I going to do? Why are gardenias black?

Why gardenia leaves?

1. Too much watering: The cause of scorpion flowers can be too much water to even breathe the rotten roots.

2. The temperature is too low: the growth temperature of the gardenia is 16-18 °C, and the reason for the leaves may also be too low.

3. Pest damage: The cause of scorpions may also be tea coal diseases caused by aphids, flour, and chickens.

4. Root damage: Gardenia damage is not enough to provide enough nutrients for the plant, and the leaves are black.

What to do if a gardenia is black?

1. Rational use of water: Gardenia appears, the leaves are chopped first, and the watering principle is to provide water to the pot soil, and every time you water, the climate is more humid. Water.

2. Temperature management: Gardenia is good in summer, the air humidity is high, the water is kept under the shed, the environment is placed in the sun, the temperature is not less than 0 °C, let sleep and sleep.

3. Pest control.

1 aphid: Aphids can be crushed into juice with garlic juice and then sprayed with strains.

2 pupiopia: powabar can be added with 120 ml of water with 1 g of washing powder, add a few drops of flowers, mix well or brush it with a brush.

3 mails: Klick insects can be removed from alcohol or soapy water.

How to raise gardenias:

1.Basin: Gardenia is a well-known soil with a suitable pH of 5 to 6Cultivated soil, peat, peat or tangible sawn and half, taboo, taboo, boiling and cinder, the use of commercial gentleman's clay is more convenient and practical.

2. Watering: Gardenia and moist soil and large air humidity, from September to September, keep the potting soil moist, usually the pot can be watered, and put it once. But after the flowers are buds, the water is not too much to avoid falling buds.

3. Fertilizer: Gardenia is a fertilizer plant, cultivate soil plus 3 of the fertilizer, plant baking fertilizer in the growing season and add sulfate sulfate, the current rough period is 12 times to 2 times. The solution of potassium dihydrogen phosphate can make flowers and rich flowers.

4. Lights: Gardenia, long-term growth, long-term growth, long flowering branches, less flowers, except from July to August, strong light needs to be masked and winter sleep, generally need to be placed under the maintenance of sunlight, can flowers like leaves.

5.Pruning: Gardenia and cutting, cutting it into internal branches, sick and short branches. But keep in mind that gardenias do not shorten, otherwise it will not flow.

6. Change the soil: Gardenias are better in the spring. Spring is too good after.

After the intestinal basin, the old roots are cut off, shaken out of the old soil, and the new soil is poured into the basin with water, exothermic half yin, there are sprouts of bean sprouts, they are kept in the sun. 7. Winter: Gardenias can be revealed in the Qinling Mountains of our country, but the pelvic scorpion will be severely damaged by the blood in winter, you can put the potted flowers to sleep in the cold room to protect the roots, and put them in the back to enjoy the wind in winter, spring quickly, and very early.

Gardenia leaves are black and dry, keep these 3 points in mind, and the recovery will be simple.

Most of the time it is because of the problem of water accumulation, which is not dealt with in time, or it may be related to the soil where gardenias are planted, resulting in poor drainage and air permeability, or it may be a problem with glue, the temperature is relatively low in winter, and the roots are waterlogged.

The soil is too wet, so be sure to reduce the amount of water in the gardenia pot, otherwise it will make the leaves blacken faster.

Stop watering. It's likely that you're overwatering. Keep them in the sun to dry properly and observe them.

1. Water accumulation.

If you notice that the leaves of the gardenia are slowly blackening from the periphery to the middle, and the leaves are soft to step on, then it can be judged that there must be water accumulation in the roots. This situation is generally prone to occur in two situations. First, the placement position is not ventilated and breathable, and it is shaded for a long time.

If you water too much, it is easy to accumulate water in the roots, which will cause the leaves to turn black.

2. Soil problems.

The other is the improper selection of flower pots and soil, poor drainage and air permeability, in the process of maintenance, a little bad control, it is easy to cause waterlogging, you should choose a clay pot or plastic pot, do not choose the kind of good-looking porcelain pot, the air permeability is very poor. The soil is sandy and nutrient.

3. Watering problems.

The winter is suitable to reduce the amount of watering of gardenias, the temperature is low in winter, and the roots are waterlogged, which is easy to cause frostbite of the root system, which will also be reflected in the blackening of the leaves. Be sure to water when it's wet and dry.

4. Severe potassium deficiency.

Newly planted gardenias generally do not appear in this situation, many of them only appear after a year of raising the leaf edge first gradually blackened and the whole plant died, which is a manifestation of severe potassium deficiency. Usually pay attention to fertilization, gardenia potassium deficiency, its old leaves will turn from green to brown, at this time you must choose to apply rotting cake fertilizer, such as inorganic fertilizer should be more thin fertilizer diligent, so as to ensure the safety of gardenias.

Low humidity. Many gardenias in the flower market are maintained in greenhouses, and the air humidity in the greenhouses is very high, while the humidity at home is generally low, and the temperature is dry, which will lead to drooping leaves.

Weak root system. The gardenia that I just bought home, the leaves, new leaves and flower buds have a great demand for water, and the low humidity of the air at home causes the gardenia to only get enough water from the root system, which increases the burden on the root system, and the young leaves and flower buds wilt first, and then the whole leaf all wilts.

1. Light: Gardenia likes light and can also tolerate shade, and the leaf color is dark green but the flowering is slightly worse under shade conditions.

2. Temperature: Gardenia likes warm and humid climate, and is heat-resistant and slightly cold-tolerant (-3).

3. Soil: Gardenia likes fertile, well-drained, acidic light clay loam, and is also resistant to drought and barrenness, but the plant is easy to senescent.

4. Moisture: Gardenia likes moist soil and large air humidity, and should be increased appropriately to water during the growth period.

Watering: Gardenia likes moist soil and large air humidity, in April to September during the growing period to keep the potting soil moist, usually the potting soil can be watered when it is white, once watered thoroughly. However, after the flowers have buds, they should not be watered too much, so as not to cause buds.

Fertilization: Gardenia is a fertilizer-loving plant, culture soil plus 3% rotten cake fertilizer as base fertilizer, growing season with cake fertilizer and ferrous sulfate alum fertilizer water watered once a week, now bud watering 1 to 2 times potassium dihydrogen phosphate aqueous solution can make the flowers hypertrophied, rich floral fragrance.

Light: Gardenia likes light, can grow in semi-shade for a long time, but the flower branches are longer, the flowers are fewer, except for the strong light at noon from July to August to shade and winter dormancy, generally need to be maintained in the sun, in order to bloom luxuriantly.

Change the soil: Gardenia in the spring in March to change the soil is better, after the pot cut off part of the old roots, shake off half of the old soil, with the new soil planted in the pot after watering through, put in a warm semi-shaded place, there are new shoots when the sprout is placed in the sun for maintenance.

These flowers are generally planted in the nursery, the environment is warm and humid, we buy back definitely not meet their requirements, he has to have an adaptation process, it is recommended that you spray water once in the morning and evening!

Gardenias need to pay attention to watering, keep the potting soil moist, and apply decomposed thin fertilizer frequently. It is better to use rainwater or fermented rice washing water. During the growth period, such as watering ferrous sulfate water or alum fertilizer water every 15 days (the two can be used alternately), it can prevent the soil from turning alkaline, and at the same time can supplement the soil with iron and prevent the yellowing of the stick leaves.

In summer, gardenias should be sprayed with water once a day in the morning and evening to increase the humidity of the air and promote the luster of the leaves. Potted gardenias, after flowering in August, only water is watered to control the amount of watering. Before the cold dew in October, move indoors and place it in a sunny place.

Watering is strictly controlled in winter, but foliage can be sprayed with clean water. From May to July every year, when the gardenia growth period will stop, the plant is pruned to remove the top tips to promote the germination of branches, so that the plant shape is beautiful and the flowers are more in the future.

The soil is moist but not too wet, scatters light, slightly acidic soil.

It's important to see if you're buying flowers in pots, and if so, maybe you're watering too much or too little.

No, the reason for turning black is because he didn't have time to slow down the seedlings after changing the pot.

In the process of repotting, the root system will be injured, breaking the balance of absorption and transpiration, in this case it should be placed in a cool place to control water and slow down the seedlings, this period is generally about 7-15, the length of time and the damage to the root system when changing the pot is related. The first thing to control is to make the root system recover quickly, and secondly, to give the root system a good environment to avoid the rot and infection of the wound caused by moisture.

After changing the pot, you can use water for watering, and when the root system recovers and the plant grows normally, you can use rice water, but you must remember to use fresh rice water, because the pH value of the stored rice water will be very low after fermentation, that is, too much acidity will have an impact on the root system of flowers. I haven't used milk, I don't know how. Do not water fertilizer within a month of repotting.

Newly repotted flowers, it has a slow seedling period, can not be exposed to the sun, to put in the semi-shade.

Water the potted plants every day, generally the leaves are black because of lack of water, I bought a pot at first it was also watered less leaves wilted, now watering every day will grow very good, do not bask in the sun directly, to put it in the shade.

The new leaves of gardenia are black and necrotic, which should be due to gardenia leaf spot.

Gardenia mosaic leaf spot.

Symptoms: mainly occur on the leaves, the pathogens mostly invade from the leaf tip or leaf margin, the lower stem and leaf are the first to occur, the susceptible leaves appear round or nearly round lesions in the early stage, light brown, brown edges, sparse wheel lines, diameter 5mm 15mm; If the leaf margin is irregular, brown or **gray-white, the edge is brown, there are concentric wheel lines, and several lesions heal to form irregular large spots, so that the leaves wither; In the later stage, numerous small black spots are produced, which are buried under the epidermis.

Control methods: In autumn and winter, prune the seriously diseased leaves on the trees, sweep the fallen leaves, and destroy them intensively to reduce the source of infection.

The planting should not be too dense, and the pruning should be carried out appropriately to facilitate ventilation and light transmission; Try not to wet the leaves when watering, preferably in the morning on a sunny day.

Spray 1000 times of 70% methyl tobuzin wettable powder, or 25% carbendazim wettable powder 250 300 times, or 75% chlorothalonil wettable powder 700 800 times for control. Spray 1 spray every 10 days. When the disease is severe, it can be sprayed with 65% zeb 600 800 times solution, or 50% carbendazim 1000 times solution to control the spread and expansion of the disease.