How to raise Jasmine in winter
As the temperature dropped sharply, the white and fragrant jasmine flowers entered a life-and-death maintenance stage. As a typical subtropical plant, winter maintenance of jasmine needs to break through the three major survival barriers of temperature, light and ventilation. This article uses four core skills to help you create a perfect winter plan for jasmine. Jasmine winter survival rule, triple protection, temperature control, when the temperature falls below 10 ° C, jasmine leaves begin to appear frozen spots. It is recommended to complete the room before the frost falls: it is best to maintain 15-20 ° C in the northern heating area, while the "quilt wrapping method" can be adopted in the south-wrapping flowerpots with non-woven fabrics and covering them with transparent plastic bags at night to form a miniature greenhouse. During special cold waves, the flowerpot can be placed high in a foam box and filled with wood chips around it to keep warm. Smart ventilation schedule opens windows for ventilation from 11:00 to 14:00 every day to maintain the air circulation rate of 40% to 60%. Use a thermohygrometer to monitor in real time to avoid cold wind blowing directly on the plants. An internal circulation system can be used in haze weather: turn on the air purifier indoors, and cover the surface of the basin soil with pine scales to prevent moisture from evaporating too quickly. The photosynthesis enhancement plan moves jasmine to the southbound bay window to ensure direct light for 4 hours a day. Use a fill light (red light with wavelength of 640- 660nm + blue light of 450nm) to fill light for 2 hours a day, and control the light intensity at 8000-10000 lux. Rotate the flowerpot regularly to ensure that the branches and leaves on each side receive uniform light. The precise management of water and fertilizer adopts the "three-finger detection method": insert your fingers into the second joint in the soil, and pour slightly warm water (25℃) when it is dry. The amount of watering in winter is reduced to 1/3 in summer, and potassium dihydrogen phosphate (concentration of 0.1%) is added once a month to enhance cold resistance. Stop applying nitrogen fertilizer from December to February to avoid breaking dormancy.
Through four-dimensional control of temperature, light, ventilation, water and fertilizer, and regular inspection of leaf backs to prevent red spiders, your jasmine can not only survive the winter safely, but also accumulate energy to bloom with a stronger fragrance in the coming year. It is recommended to take growth records every month, establish exclusive maintenance files, and gradually master Jasmine's winter survival code.