Is it good to raise gardenia feng shui at home?
1, soil. Gardenia likes to grow in acidic soil with more humus. Humic soil 4 parts, vegetable garden soil 4 parts, soybean meal (decomposed) 1 part, river sand 1 part, with good water permeability and air permeability, and mixed with 0.5% black alum or sulfur.
2. temperature. The optimum growth and development temperature of Gardenia jasminoides Ellis is 20-25℃, and the suitable flowering temperature is 26-28℃. After 4-5 years' cultivation, the plant can endure short-term low temperature of -3℃, and when the temperature is lower than -5℃, it will suffer from freezing injury, the leaves will fall off after blackening, and the young branches will freeze to death. In winter, the indoor curing temperature should be 6- 10℃, and the lowest temperature should not be lower than 0℃. If the room temperature is higher than 15℃, it is necessary to open the doors and windows facing south and ventilate properly to cool down, otherwise it will easily cause germination, and it will suffer when it meets low temperature, which is extremely unfavorable for the growth and flowering of the next year.
3. Lighting. Gardenia likes plenty of sunshine, especially in spring and autumn, and should be given more than 8 hours of sunshine every day, otherwise it will be unfavorable to its growth and development and wintering in winter. Avoid strong light at noon in summer, otherwise the leaves will turn yellow, and should be maintained in astigmatism, with a light transmittance of 40-50%. In winter, it is placed indoors in Nanyang.
4. Fertilize. Gardenia is not a flower that loves fertilization very much, but because of its vigorous growth and limited nutrients in the basin soil, it is necessary to supplement fertilizers reasonably during the growing period. Apply decomposed human excrement or cake fertilizer once every 10 day, stop watering 1 day before fertilization, and water 1 time at the same time on the day of fertilization. Fertilization was stopped in mid-September. Adult plants are applied with sesame sauce residue once in mid-June and mid-August, with 0.5- 0.5% each time.
1 beam, crushed and fully mixed with topsoil.
5. water. Gardenia likes water, and some people call it "water gardenia". In spring, due to the strong wind, windy, dry air and scarce rainfall, water every three days, and sprinkle water around potted flowers every morning and evening to improve air humidity. It's hot after summer, so water less in the morning and then water it after two o'clock in the afternoon. Soft water should be used for irrigation in summer, because there are many calcium and magnesium salts in hard water, which is very unfavorable to the growth of gardenia, from yellowing of branches and leaves to rapid death. In order to overcome the alkalinity of soil and water quality, alum fertilizer water is poured once a week in the growing season to keep the branches and leaves of gardenia green. Water should be controlled in winter, and long-term high water content is easy to cause root rot and death.
6. Choose your heart. In order to control the growth of gardenia, make the plant beautiful and promote flowering, when the vigorous growth will stop in spring, the top of new branches will be picked to promote the fullness of axillary buds and the formation of flower buds at the base of branches.
Note: Gardenia is often prone to yellowing of leaves, which is caused by many reasons, so different measures should be taken to prevent it. Yellowing disease caused by lack of fertilizer: this yellowing disease starts from the old leaves at the lower part of the plant and gradually spreads to the new leaves. Nitrogen deficiency: the leaves are yellow and the new leaves are small and crisp. Potassium deficiency: Old leaves turn from green to brown. Phosphorus deficiency: Old leaves are purple or dark red. Under the above circumstances, decomposed human excrement or cake fertilizer can be forcibly applied.
Yellowing caused by iron deficiency: this yellowing disease is manifested in new leaves. At first, the leaves were pale yellow or white, and the veins were still green. In severe cases, the veins turn yellow or white, and eventually the leaves will dry up and die. Spraying 0.2%-0.5% ferrous sulfate aqueous solution can prevent this situation.
Yellowing caused by magnesium deficiency: this yellowing disease is gradually developed from old leaves to new leaves, and the veins are still green. In severe cases, the leaves fall off and die. Spraying 0.7%-0.8% boron and magnesium fertilizer can prevent this situation. Overwatering, freezing, etc. , it will also cause the leaves to turn yellow, so pay special attention in the maintenance process.
When the indoor ventilation is poor and the temperature and humidity are too high in winter, gardenia is prone to scale insect harm and soot disease. You can scrape off scale insects with bamboo sticks, or spray 200 times of water with 20 # petroleum emulsion. For soot disease, clean water can be used to scrub or spray carbendazim 1000 times solution.