Gardenia has always been known for its large leaves and white color. In fact, many friends like Gardenia very much in our life. They want to keep Gardenia at home, but they can't keep it well! In fact, it's not that gardenia is difficult to raise, but that you don't master the cultivation skills. Now let's learn how to raise Gardenia!
How to raise Gardenia
1. Moisture: Gardenia likes to be wet, and it should be watered appropriately during the growth period. Each watering should be carried out after the basin soil turns white, and it must be poured thoroughly at one time. It is dry and hot in summer, and leaf water must be sprayed 2-3 times a day to increase air humidity and help plants cool down. Gardenia should not be watered too much after the bud appears, so as not to cause it to fall. Watering in winter should be dry to prevent ponding and root rot.
2. Soil: Gardenia likes acid soil. It is an indicator plant of acid soil, so the slightly acidic environment of soil has become the key to the growth of Gardenia. Generally, for Gardenia cultivation, fertile, loose and well drained acid culture soil should be selected, and the soil pH value should be controlled between 4.0-6.5. If pine sawdust is retted and mixed into the soil, the use effect is also very good.
3. Timely pruning: Gardenia has strong germination power and is easy to overlap branches, resulting in airtight and scattered nutrition, so we should pay attention to timely pruning. Three main branches shall be selected and reserved according to the tree shape, and other branches sprouted from roots and tillers shall be cut off at any time. The branches of Gardenia should be shortened in time after withering to promote the germination of new branches. When the new branch of Gardenia grows three knots, pick the heart immediately to avoid blind growth.
4. Temperature: the most suitable temperature for Gardenia growth is 18 ℃ - 22 ℃, overwintering is 5 ~ 10 ℃, lower than - 10 ℃ is easy to be frozen, and too low and too high temperature are extremely unfavorable to growth. In summer, gardenia should be maintained under a sparse forest or shade with good ventilation, high air humidity and light transmission. In winter, it should be placed in a sunny environment of no less than 0 ℃ to let it sleep naturally. If the temperature is too high, it will affect the flowering of the next year.
5. Fertilizer: Gardenia likes fertilizer. In order to meet the fertilizer demand during the growth period and maintain the slightly acidic environment of the soil, ferrous sulfate can be mixed into the fertilizer solution for fermentation in advance. After April in the peak growth season, topdressing can be carried out every half month. It is best to mix more water during fertilization to prevent flower burning. The principle of applying thin fertilizer and more fertilizer must be mastered in fertilization. It is forbidden to apply thick fertilizer or raw fertilizer. Fertilization should be stopped during hibernation.
6. Pest control: Gardenia is most prone to yellowing and leaf spot disease. Pay more attention to prevention and control during maintenance. If it occurs, corresponding measures shall be taken for treatment. Common pests include stickleback moth, scale insect and whitefly. If there are a small amount of pests, they can be wiped off with wet cloth. If there are too many pests, they should be sprayed with insecticides. At ordinary times, they should pay attention to sterilization and disinfection.
matters needing attention
1. Gardenia likes shade: avoid exposure to the hot sun, but some people often mistakenly believe that gardenia requires full shade, resulting in mistakes in cultivation. In fact, while paying attention to cultivating its cool environment, it is necessary to maintain 60% light all day to meet its growth needs.
2. Gardenia likes fertilizer: it is appropriate to apply retted soybean cake, sesame paste residue, peanut bran and other fertilizers. They can be acidic after fermentation and decomposition, but they must be applied more thinly. Do not apply concentrated fertilizer or raw fertilizer. Do not apply fertilizer during hibernation. If it has been planted for less than three years, do not use human feces and urine. Excessive application of nitrogen fertilizer will cause thick branches, large leaves and thick green, but will not bloom. Lack of phosphorus and potassium fertilizer will also lead to non flowering or withering and falling off of flower buds.
3. Gardenia should be trimmed in time: Gardenia has strong germination power, easy overlapping branches, airtight and scattered nutrition. Three main branches shall be selected and reserved according to the tree shape, and other branches sprouted from root tillers shall be cut off at any time. After flowering, the branches should be shortened in time to promote the germination of new branches under the cutting. When the new branch grows three knots, pick the heart to avoid blind growth.
4. Gardenia acid loving soil: soil, water and fertilizer contain alkali, which makes the plant unable to absorb iron, affects the formation of chlorophyll, withers branches, scorched leaves, and even dies. Use fertile, loose and well drained acidic soil. If pine sawdust is retted and mixed into the soil, the use effect is also very good.
5. Gardenia is fond of humidity: if the air humidity is lower than 70%, it will directly affect flower bud differentiation and flower bud growth, but excessive humidity will cause root rot, branch withering and leaf yellow falling off. In addition to normal watering, clean water shall be often used to spray the leaf surface and nearby ground to appropriately increase the air humidity.
6. Gardenia likes temperature: the growth period is 18 ~ 22 ℃, the overwintering period is 5 ~ 10 ℃, and it is easy to be frozen below - 10 ℃.
7. Gardenia should prevent yellowing. There are four causes:
① Iron deficiency. If the soil contains too much calcareous, alkali, phosphorus and manganese, it will affect the plant's absorption of iron, affect the formation of chlorophyll, make the tender leaf vein lose green and spread the whole leaf. 1 / 500 ferrous sulfate water or 0.2% black alum water can be applied every 10 days.
② Magnesium deficiency. Acid red soil and too much potassium and ammonium are prone to magnesium deficiency, which makes the veins of old leaves in the lower part of the plant green and yellow. It can be sprayed with 1% ~ 2% magnesium sulfate solution, but excessive application of magnesium will cause calcium deficiency and hinder the development of xylem in roots and stems.
③ The basin soil is too wet or too dry.
④ Summer exposure.
The above introduces how to raise gardenia. Let's take a look at the role of Gardenia.
(1) The role of beautifying home is absolutely many. If you put a gardenia next to the TV at home, in addition to beautifying the indoor space and absorbing indoor harmful radiation, it also emits a fragrance from time to time, covering up the original dull or even unpleasant smell, exchanging air for the space and making the whole home full of poetry.
(2) Appearance makes you feel impeccable. We usually say that gardenia has great appreciation value. How can he have appreciation value? Gardenia has luxuriant branches and leaves, evergreen leaves in four seasons, elegant flowers, green leaves and white flowers. It is an excellent beautification material in the courtyard. It is suitable for the configuration in front of the steps, beside the pool and beside the road. It can also be used for flower fence, potted plant and bonsai viewing. The flower can also be used for flower arrangement and decoration. A beautiful and moving little flower sends out a fresh fragrance from time to time, which makes people nostalgic.
(3) It can make a qualitative change in the home environment. The biggest feature of a gardenia is its fragrance. As long as you plant one at home, you can smell it in a radius of hundreds of square meters. Imagine that in your home, the space is about more than 100 square meters. No matter where you go, you can smell the smell of Gardenia. How enjoyable it is!
(4) Living in the space of gardenia, people will become healthier. Living alone, the quality of the inhaled air has a great impact on one's health. We usually see that people in rural areas live longer and healthier. They can still work in the fields in their seventies, but not those living in the city. There will be more time to go to the hospital at that time. The biggest difference between rural and urban areas is that the air quality is different, Rural is obviously much better, so we put some Gardenia at home to make the air at home as fresh as rural. At this time, longevity may not be impossible.
The above is all about how to raise gardenia and the cultivation methods of Gardenia. I hope it will be helpful to you.