Culture methods and matters needing attention of Gardenia jasminoides when will they bloom

Gardenia is very long and good-looking, white, a look is very pure, the taste of gardenia is also very fragrant, is fragrant, how to raise gardenia? How do you die when you raise it? What is the cause of this? When do gardenias usually bloom? Let's take a look at the Women's Network:

Culture methods and matters needing attention of Gardenia jasminoides

I. Culture methods of Gardenia jasminoides

1. Soil: gardenia likes acid soil, which is the indicator plant of acid soil, so the slightly acidic environment of soil has become the key to the growth of gardenia. Usually, the acid culture soil with fertile, loose and good drainage should be selected for the cultivation of Gardenia jasminoides, and the soil pH value should be controlled between 4.0 and 6.5. If the pine sawdust is thoroughly mixed into the soil, the effect is very good. 2. Temperature: the most suitable temperature for the growth of Gardenia jasminoides is 18 ℃-22 ℃, which is suitable for overwintering for 5-10 ℃. If the temperature is lower than-10 ℃, it is easy to freeze. Too low and too high temperature are extremely disadvantageous to the growth. In summer, gardenia should be maintained under a sparse forest or shady shed with good ventilation, high air humidity and light transmission. In winter, it should be placed in a sunny environment of not less than 0 ℃, and let it dormancy naturally. If the temperature is too high, it will affect the flowering next year. 3. Moisture: gardenia likes to be moist and should be watered appropriately during the growing period. Each watering should be carried out after the basin soil is whitened and must be watered thoroughly at one time. In hot and dry summer, foliar water should be sprayed 2-3 times a day to increase air humidity and help plant cool down. Gardenia flower should not be watered too much after budding, so as not to cause its bud to fall. It is better to water dry in winter to prevent stagnant water from rotting roots.

4. Fertilizer: gardenia likes fertilizer. In order to meet the fertilizer demand during the growing period and maintain the slightly acidic environment of the soil, ferrous sulfate can be mixed into the fertilizer solution in advance to ferment. After April in the growing season, you can top fertilize every half a month, and you'd better add some water when applying fertilizer to prevent burning flowers. Fertilization must grasp the principle of applying more thin fertilizer, do not apply thick fertilizer or raw fertilizer, and stop applying fertilizer during hibernation. 5, timely pruning: gardenia sprouting is very strong, easy to overlap branches, resulting in airtight, nutrition dispersion, so pay attention to timely pruning. In the construction, three main branches should be selected according to the shape of the tree, and other branches sprouting from the roots should be cut off at any time. Gardenia flowers should be truncated in time to promote the germination of new branches. When the new branch of gardenia grows out of three nodes, it is necessary to pick the heart immediately so as not to grow blindly. 6, pest control: gardenia is most prone to chlorosis and leaf spot disease, usually maintenance should pay more attention to prevention and control, if it occurs, corresponding measures should be taken for treatment. Common pests are diamondback moth, shell insects and whitefly, if there are a small number of insect pests can be erased with wet cloth, if too many should be sprayed pesticides, usually should pay attention to sterilization and disinfection.

II. Matters needing attention in the culture of gardenia

The main results are as follows: (1) after entering winter, let the gardenia go dormant for one month, then move into the room, and keep the room temperature above 18 ℃ by increasing the temperature and supplementary light, which can promote the gardenia to blossom in winter and spring, and can be widely used as the material of various bouquets. (2) watering the root in time after planting, and maintaining a large amount of air and soil moisture, but not stagnant water, so as to avoid rotting the root. Before blooming, the management of fertilizer and water should be strengthened and the principle of thin and diligent application should be carried out. (3) the plant row spacing depends on the use of gardenia flower production. Generally used for cut flowers and public places to watch the planting pit, the depth and width are about 50cm, it is better to plant in the dormant period. If it needs to be planted during the growing period, it is best to carry soil masses, so that survival can be guaranteed.

(4) Gardenia jasminoides cultivated in open field has strong adaptability, extensive cultivation management and easy to be successful. It is appropriate to choose sunny but not easy to be exposed to direct sunlight, the soil is fertile, loose, well-drained acidic and slightly acidic soil. The technical requirements of soil preparation, box opening and base fertilizer are the same as those of other flowers. (5) the shaping and pruning of Gardenia jasminoides is mostly carried out in early spring, and it is necessary to pick the heart after each new shoot, one branch is divided into three branches, the crown is formed quickly, and there are many flower branches. At the same time, cut off the long branches of the overdense inner rifles. When the flowers are about to wither in each season, the residual flowers should be removed in time, which is conducive to flower bud differentiation in the next season and blossom more and better.

Matters needing attention in changing gardenia pots

1. Gardenia likes warm and humid environment, and the suitable temperature for growth is above 18 ℃. When cultivated in open field, it is better to choose loam with at least 30cm depth and rich organic matter. Drainage needs to be good, do not return stagnant water; pot planting can be mixed with 25 grams of soilless medium to increase the ventilation of basin soil, and change soil and salt once a year, pot depending on plant replacement, spring or autumn is more suitable. 2. Gardenia grows rapidly and has strong roots, which is very suitable for the environment in the south. If the roots have been covered in the basin for 2 ~ 3 years and begin to age, the growth of the plant will be affected if the roots are not changed at this time. Moreover, the function of the aging root system for absorbing water and nutrients will be reduced, and the water retention of the medium will also be reduced because it is full of roots. If the plant is not properly pruned and its branches and leaves are allowed to grow, it is easy to die because the evapotranspiration of the plant exceeds the water uptake of the root. Therefore, it is necessary to pay attention to the cultivation of many potted plants, changing pots at least once every two years and pruning every year to maintain plant regeneration and growth.

When will the gardenia bloom:

The florescence is from March to July. The flowering time is different in different places, but the flowering time is all within this range.

Gardenia is very good-looking and easy to raise, but we must be careful not to change the flowers when changing pots.

Culture methods and matters needing attention of Gardenia jasminoides how to do if Gardenia does not blossom

According to legend, gardenia represents the waiting love, which makes people yearning and reserved. Gardenia is an important garden ornamental plant, the color is white with fragrance, gardenia culture methods and matters needing attention are things that novice gardenia farmers want to know. Then the editor of the wed114 wedding network lists some matters needing attention when breeding gardenia to let everyone know why some gardenia can not bloom.

Culture method of Gardenia jasminoides

Reason 1: inappropriate lighting

Gardenia does not like strong light, but can not do without light, Jiaozi flowers like semi-overcast in summer and maintain in places with sufficient indoor light in winter. If the light is too strong or too weak, it will affect the blooming of the mast flower.

Culture method of Gardenia jasminoides

Reason 2: serious diseases and insect pests

When the disease and insect pests are serious, the gardenia plant is damaged, and the flower buds fall off by the disease and insect pests. Therefore, we should pay attention to insect control in the planting process.

Culture method of Gardenia jasminoides

Reason 3: no pruning for a long time

Gardenia branches are messy, long branches grow vigorously, disease and insect branches will also consume a lot of nutrients, when the branches are too tight, the leaves can not all carry out photosynthesis, but consume nutrients, which also leads to gardenia flowers do not blossom.

Culture method of Gardenia jasminoides

Reason 4: improper water and fertilizer

During the growth period, excessive water and fertilizer caused plant growth, reproductive growth did not get enough nutrients, affecting the formation of flower buds, resulting in no flowering or few flowering, even if it could blossom, it was easy to drop flowers and buds. Excessive application of nitrogen fertilizer and lack of phosphorus and potassium fertilizer will affect flower bud formation. Therefore, attention should be paid to the application of flower fertilizer with more phosphorus and potassium fertilizer in the period of flower bud differentiation.

Culture method of Gardenia jasminoides

Reason 5: high salt and alkali content in soil

Jiaozi flowers like slightly acidic soil. The soil in the north is high in salt, so it will suddenly be alkaline, so planting will also lead to plant yellowing, which will eventually affect flowering. So it can be suddenly acidified before planting. It is better for the growth of gardenia.

Culture methods of Gardenia jasminoides and matters needing attention

Gardenia, alias yellow gardenia, white toad, etc., is an evergreen shrub or small tree of Rubiaceae. It is native to central China and is now widely cultivated in various places.

For domestic gardenia, it is necessary to master its physiological characteristics in order to make leaves, flowers and fruits beautiful and improve the ornamental value.

Soil. Mizihua likes to grow in acidic soil with more humus. It can be mixed with 4 parts of rotten leaf soil, 4 parts of vegetable garden soil, 1 part of soybean meal (mature) and 1 part of river sand, with good water permeability and air permeability, and then mixed with 0.5% black alum or sulfur.

Temperature. The best temperature for growth and development of Gardenia jasminoides is 20-25 ℃, and the optimum temperature for flowering is 26-28 ℃. The plants cultured for 4-5 years can endure a short-term low temperature of-3 ℃, suffer frost injury below-5 ℃, the leaves blacken and fall off, and the young shoots freeze to death. In winter, indoor maintenance should be kept at 6-10 ℃ degrees, and the minimum should not be less than 0 ℃. If the room temperature is higher than 15 ℃, the south-facing doors and windows should be opened, properly ventilated and lowered the temperature, otherwise it is easy to cause germination and will be damaged in case of low temperature, which is very disadvantageous to the growth and flowering of the following year.

Light. Gardenia likes adequate light, especially in spring and autumn, giving more than 8 hours of sunshine a day, otherwise it is disadvantageous to its growth and development and winter overwintering. Summer avoid noon strong light exposure, otherwise the leaves will turn yellow, to place astigmatism maintenance, light transmittance up to 40-50% is appropriate. Put indoors in the south-facing direct sunlight place in winter.

Fertilize. Gardenia is not a very fertile flower, but due to its exuberant growth and limited nutrients in the basin soil, it needs reasonable fertilizer during the growing period. When mature human feces, urine or cake fertilizer is applied every 10 days or so, watering should be stopped one day before fertilization, and permeable water should be watered at the same time on the day of fertilization. Fertilizer will be stopped from the middle of September. The adult plants were added 0.5-1 taels of sesame sauce residue in mid-June and mid-August respectively, which were fully mixed with topsoil after crushing.

Water it. The gardenia flower likes the flood, some people call it "water gardenia". In spring, because of more wind, strong wind, dry air and little rainfall, it is watered every 3 days, and water is sprinkled around the potted flowers every morning and evening to improve air humidity. The weather is hot after summer, so water less in the morning and water thoroughly after two o'clock in the afternoon. It is suitable to be irrigated with soft water in summer, because there are more calcium and magnesium salts in hard water, which is very disadvantageous to the growth of gardenia. In order to overcome the alkalinity of soil and water quality, alum fertilizer was irrigated once a week in the growing season to keep the branches and leaves of gardenia green. Winter should be controlled watering, do not dry do not water, long-term water content is too much, easy to cause rotten root death.

Pick the heart. In order to regulate and control the growth of gardenia, make the plant shape beautiful and promote flowering, when the exuberant growth will stop in spring, the top of the new branch will be removed to promote the full axillary bud at the base of the branch and the formation of flower bud.

Notes on Gardenia jasminoides

Gardenia is often prone to yellowing of leaves, which is caused by a variety of reasons, so different measures should be taken to prevent and cure it. Chlorosis caused by lack of fertilizer: this chlorosis starts from the old leaves in the lower part of the plant and gradually spreads to the new leaves. Nitrogen deficiency: simple yellow leaves, new leaves small and brittle. Potassium deficiency: old leaves change from green to brown. Phosphorus deficiency: old leaves are purplish red or dark red. For the above cases, rotten human feces and urine or cake fertilizer can be forced to apply. Chlorosis caused by iron deficiency: this yellowing disease occurs on new leaves. At first, the leaves are yellowish or white, the veins are still green, and in severe cases, the veins are yellow or white, and eventually the leaves will dry up and die. To this kind of situation, can spray 0.2% Mel 0.5% ferrous sulfate solution to prevent and cure. Chlorosis caused by magnesium deficiency: this yellowing disease begins to develop from old leaves to new leaves, and the veins are still green. In severe cases, the leaves fall off and die. For this situation, 0.7% Mel 0.8% boron and magnesium fertilizer can be sprayed to prevent and control. Excessive watering and freezing can also cause the phenomenon of yellow leaves, so special attention should be paid to it in the process of maintenance.

Key points of Gardenia Culture

The cultivation of gardenia in China has a long history. From the 17th century to the 18th century, gardenia was introduced into Europe, which aroused widespread interest from local horticulturists and flower lovers, and spread to the United States in the early 19th century. After continuous cultivation, many new varieties of gardenia have emerged, such as double winter blooming, pot planting with four seasons flowering, varieties specially used for cut flowers, and single and double varieties with yellow and white markings on the leaves.

The plant of Gardenia jasminoides is 1 to 2 meters high, with yellowish roots and branched stems. Leaves simple, opposite, a few in whorls of 3, leathery, shiny, long elliptic, entire. Stipules membranous, usually 2-lobed, enclosing branchlets, flowers large, white, with short pedicels, fragrant, solitary in branch ends or leaf axils. Calyx green, cylindric, base narrowing, apex with several lobes, tube nearly as long as lobes. After opening, the Corolla is saucer-shaped, usually 6-merous, 5-merous or 7-merous. The capsule is Obovate or elliptic, golden yellow or orange when ripe, with 5 to 8 winged longitudinal ribs and 5 to 8 narrow lanceolate persistent calyx at the top, nearly equal to the length of the fruit. Seeds numerous, oblate, yellow-white. The flowering period is from May to June and the fruit ripening period is from November to December.

Gardenia likes humid air and warm climate, and grows well in well-drained, loose and fertile acid soil. It is shade-tolerant and cold-tolerant. The leaves fall off under-12 ℃, and are often cultivated in greenhouse in North China. It has strong sprouting ability and tillering ability, and is resistant to pruning.

Cuttings, striping and sowing are usually used for propagation. Cutting is carried out in the rainy season, when the air humidity is high and the temperature is between 20 ℃ and 25 ℃, which is beneficial to the rooting of cuttings. Cuttings can be cut into 15 cm-long branches with sturdy shoots of the same year, and 2 to 3 upper leaves are retained and inserted into the seedbed of loose and permeable sandy soil. The striping method was carried out in the first ten days of April, and the 2-to 3-year-old strong branches were pressed in the soil, which could take root in about 1 month, cut off the mother plant in the middle and late June, and transplanted to the nursery bed management. Spring sowing is suitable for sowing and raising seedlings, but the seedlings bloom later.

Transplanting seedlings should be carried out in the rainy season. When planting, the plant should take the soil ball, choose the soil is fertile, loose, moist land to plant. It should be watered frequently during the high temperature period in summer to increase humidity. Apply more rotten fertilizer and water before flowering, and apply around the root with 10% human feces and urine or bean cake water, which can make the leaf Maohua big and fragrant. After entering the autumn, little or no fertilization, so there is a "fertilization but autumn" said, so as not to grow branches and leaves, vulnerable to freezing injury. If it is found that the leaves of Gardenia jasminoides turn yellow, apply alum fertilizer (containing 1% ferrous sulfate) to make the leaves bright green. Potted gardenia, to prepare fertile, loose and acidic culture soil, rich in humus. Keep sufficient water during the growing period, which can promote the blooming of pregnant buds. Frosts Descent moved indoors to spend the winter. If aphids and wax scale are found in the leaves in the rainy season, 1000 times of dimethoate can be sprayed to control them.

Gardenia jasminoides is a commonly used traditional Chinese medicine, which is used for medicinal purposes. It has the functions of purging fire and removing annoyance, clearing heat and dampness, cooling blood and detoxification and so on. Its fruit can also be used to make dyes.