Gardenias have long leaves and do not bloom, why do gardenias only grow leaves and do not bloom

Reasons why gardenias don't bloom:

There is no repotting after flowering, and there is not enough nutrients in the potting soil. Gardenia flowering consumes great nutrients, if you do not change the pot and soil in time after flowering, the growth is inhibited, and it will not bud and bloom.

Excessive water in the early stage of bud reformation leads to sterile buds in light and leaves.

Too much nitrogen fertilizer and insufficient phosphorus fertilizer lead to vigorous physiological growth and inability to enter reproductive growth. Therefore, in the flower bud differentiation stage, it is necessary to pay attention to the application of flower fertilizer or potassium dihydrogen phosphate solution with more phosphorus fertilizer, which is conducive to the formation of flower buds and pregnant buds.

If you do not prune and shape for a long time, the branches are messy, which not only affects the appearance, but also affects the formation of flower buds due to many unnecessary branches, which consumes a lot of nutrients and affects the formation of flower buds, which is also one of the reasons for not flowering or less flowering.

The room temperature is too high in winter. Gardenias are dormant or semi-dormant in winter, and the room temperature is about 5 degrees. Even some warm-loving flowers, such as Milan, glass emerald, etc., the room temperature should generally not exceed 12.

Pomegranates, yueji, oleanders, potted grapes, figs, etc. are suitable for low temperature (about 0). If the room temperature is too high, it will affect the full dormancy of flowers and trees or premature budding leaves, consume a lot of nutrients, and the growth will be weak in the next year, and the flowers will not bloom or the flowers will be thin and easy to wither.

Pest and disease infestation. During the growth and development of gardenias, they are often susceptible to pests and diseases, and their growth is damaged, which affects the accumulation of nutrients, and is also a cause of flower and bud dropping.

Nitrogen fertilizer and water will only grow branches and leaves without flowering, appropriate application of phosphorus and potassium fertilizer to promote the growth of buds and flowering, but this year there is no hope of flowering, wait for next spring, can be diluted with potassium dihydrogen phosphate 1000 times to spray the foliage and watering pots.

Gardenias only grow leaves and do not bloom may be due to: too much nitrogen, too high temperatures, lack of light, construction problems, or pests and diseases.

1. Too much nitrogen fertilizer

Gardenia normal growth and smooth flowering are inseparable from the application of water and fertilizer, if only the leaves do not bloom, it may be because this aspect is wrong. It may be because of too much nitrogen fertilizer, which makes the plants grow too long, but the lack of phosphate and potassium fertilizers makes it difficult for flowers to grow. Fertilization can be applied normally before and after the flowering period to reduce nitrogen and increase phosphorus and potassium.

Second, the temperature is too high

During winter maintenance, the indoor temperature is too high to cause it to germinate early, so that it is difficult to form flower buds, and it is difficult to grow flower buds, let alone flower. If the indoor temperature is too high, you can move it to the balcony.

3. Lack of light

Flowering has a lot to do with the replenishment of sunlight, if there is not enough light, it is difficult for the plant to flower. According to the change of seasons, give appropriate sunlight, pay attention to shade in summer, avoid the sun, and supplement the sun in winter to contact the full sun.

Fourth, the problem of pruning

Not pruning for a long time is also one of the reasons, the branches grow long and heterogeneous, consuming too many nutrients, so there is no way to concentrate nutrients to promote flowering. It can be pruned regularly to remove part of the branches.

5. Pests and diseases

If the plant is left unventilated for a long time, the plant may be infected with pests and diseases, which can also affect the growth of flowers. Ventilation can be used for prevention, and if pests and diseases are found, spraying in time**.

Gardenias only have leaves and may be pruned regularly due to poor pruning; It may also be due to the poor fertilization ratio, more phosphorus fertilizer should be used to increase flower bud differentiation; It may also be due to excessive water, during the pregnancy bud period, it is necessary to reduce the water; In addition, it may be that the sleep temperature is too low, so it is necessary to keep the sleep temperature above 5.

1. Pruning problems.

1) Specific reasons: Some plants will grow very lushly. If you don't prune for a long time, nutrients will be supplied to the stems and leaves, and the growth of flower buds will be hindered.

2) Solution: It is best to prune the plant regularly, and it is definitely not possible to prune it for a long time.

2. Fertilizer problems.

1) Specific reasons: The main reason is that the type of fertilizer is wrong. Specifically, there is too much fertilizer containing N, which causes the leaves to grow quickly.

However, if there is too little fertilizer containing P, the flowers will not bloom. As a result, the plant appears to be vigorous, but in fact it is only leaves and no flowers. Ming Travel Respectfully.

2) Solution: Phosphate fertilizer is of great significance for flowers. Especially when the flower buds begin to differentiate, we must use more phosphorus fertilizer and less nitrogen. For example, (Kh2SO2) solution, etc.

3. Moisture problem.

1) Specific reason: Before the flower buds are bred, if you water too much, the leaves of the plant will grow very quickly, but the flowers will grow less.

2) Solution: During the pregnancy bud period, reduce some water appropriately.

4. Temperature problem.

1) Specific reasons: This mainly refers to the temperature is too high in winter when the plant is dormant excitonator. In this way, the dormancy of the plant will be broken prematurely, and then the buds and leaves will be sent out prematurely, consuming a lot of nutrients. When it's time to bloom, the number of flowers is small.

2) Solution: The temperature during dormancy is best around five degrees, so as to survive the winter safely.

1. Single fertilization: The single use of nitrogen fertilizer leads to the growth of gardenia branches and leaves, and phosphorus and potassium fertilizers should be applied to promote the differentiation of flower buds.

2. Too little pruning: the permeability between the plants is affected by the construction of the plant, and the dense branches and long branches should be pruned frequently.

3. Insufficient light: long-term exposure to low light environment leads to weak plant growth, so it is necessary to provide 6 hours of light every day.

Fruit ovate, nearly spherical, elliptic or oblong, yellow or orange-red, long cm, cm in diameter, winged longitudinal ridge 5-9, top sepals up to 4 cm long, up to 6 mm wide;The seeds are numerous, flat, nearly rounded and slightly angular, about mm long and about 3 mm wide. The flowering period is from March to July, and the fruiting period is from May to February of the following year.

If the humidity of the humid air is lower than 70%, it will directly affect the differentiation of flower buds and the growth of flower buds, but too humidity will cause root rot and branch withering, and leaf yellow falling off. In addition to normal watering, the foliage and nearby ground should be sprayed frequently with water to increase the air humidity appropriately.

Fertilizer-loving should be applied to cooked soybean cake, sesame sauce residue, peanut bran and other fertilizers, fermentation and rotting can be acidic, but must be thin fertilizer more application, avoid thick fertilizer, raw fertilizer, hibernation period without fertilization. If it has been planted for less than three years, it is important not to apply human feces. Excessive nitrogen fertilization will result in thick branches, large leaves, and thick green, but no flowering.

When phosphorus and potassium fertilizers are deficient, there will also be no flowering or flower buds wilting and falling off.

The thermophilic growing period is 18 22, the overwintering period is 5 10, and the temperature is less than -10.

Trim at the right time. Gardenias form flower buds in April, so in April and May, in addition to cutting off individual redundant branches and leaves, it should generally focus on bud protection;Flowering in June, the residual flowers should be cut off in time to promote the extraction of new shoots, when the new shoots grow to 2-3 nodes, the first topping should be carried out, and part of the axillary buds should be properly erasedIn August, the second stubble is topped and the canopy is cultivated, and the plant with a beautiful tree shape can be obtained. Gardenia requires good growth in acidic soil with soil pH 5-6, and in the soil with neutral or alkaline soil in the north, it should be watered with alum fertilizer water or foliar spraying with ferrous sulfate solution at the appropriate time

There is no time to flower. Gardenias also bloom in seasons and at different times, and gardenias do not grow to this age of flowering, they will not bloom.

1. Gardenia wilting is a lack of water 2, the leaves are yellow and less watered 3, the old does not bloom is less light 4, the glue soil must be replaced 5, the flower buds can not be wet 6, the new leaves are white and iron lack fertilizer 7, the leaves are yellow and less fertilized

The gardenias bought in the flower shop basically have a lot of buds, and they are ready to be put one by one, and it seems that you can get a pot of fragrant gardenias when you buy it home, but! This is not the case!

Gardenia does not bloom reasons

1. Lack of light

Gardenias placed in a shaded environment for a long time will affect the differentiation of flower buds, resulting in non-flowering. It needs more sunlight (more direct light, not scattered light through glass), and only when the demand for light is met can gardenias bloom.

2. Lack of nutrients

Gardenias are fertilizer-loving plants, especially before and after flowering, and need to be fertilized regularly. It is recommended to apply phosphorus and potassium fertilizer (flower type) before flowering, mix it with water in proportion, and spray the leaves and then irrigate the roots once a week in the morning or evening when avoiding sun exposure.

3. The soil is unsuitable

Gardenias prefer slightly acidic soil environments, and if the soil used is too alkaline, it will affect growth and flowering. When planting, it is necessary to choose loose and breathable acidic nutrient soil.

If it has been planted, the soil acidity and alkalinity can be adjusted by applying ferrous sulfate or acid-loving plant liquid fertilizer in the later stage.