What should I do if African jasmine leaves turn yellow and lose their leaves?
African jasmine is popular for its oily green leaves and elegant aroma, but yellow leaves often fall out during the maintenance process. This article will provide in-depth analysis from the four dimensions of water management, nutrient supply, light regulation, and temperature control to help you quickly diagnose problems and find solutions. The harm of improper watering at the core of water management and maintenance shows that when the plant is in a state of water shortage for a long time, the leaves will appear curled and charred, and the growth of new leaves will be blocked. The yellow leaves caused by stagnant water mostly start at the base of the plant and soften and fall off with the leaves. Scientific watering schedule: Pour water thoroughly every three days in spring and autumn. Spray is needed to increase humidity in the morning and evening in summer. In winter, the rule of "seeing wet when it is dry" is adopted. It is recommended to use a long-spout pot to slowly inject water along the edge of the pot to avoid impacting the root system. Key points in nutrient supply: Identification of symptoms of nutrient deficiency When nitrogen deficiency occurs, old leaves are evenly yellowed, and iron deficiency causes yellowing between veins of new leaves. It is recommended to use water-soluble fertilizer containing humic acid every month and combine it with ferrous sulfate solution to adjust the soil pH. The optimal fertilization cycle growth period (March to September) applies compound liquid fertilizer diluted 2000 times every 15 days, increases potassium dihydrogen phosphate during flower bud differentiation period, and stops fertilization during dormant period. Organic fertilizers need to be fully decomposed to avoid burning roots. Advanced light control plan Classification management of light intensity management receives full sunshine (6-8 hours) in spring and autumn, builds a 50% sunshade net in summer, and moves it to the south sill in winter. Rotate the flowerpot regularly to ensure uniform light reception and avoid off-crown growth. Application of filling light equipment Plant fill light can be used on continuous rainy days to maintain more than 4 hours of light per day. The LED full-spectrum light is preferably 40cm away from the plant to avoid light burns. Professional temperature control skills overwintering protection system Northern areas enter the house at the end of October and keep the night temperature>8℃. Adopt a double-layer insulation method: the outer layer is covered with a transparent plastic bag, the inner layer is covered with pine needles and soil, and the bag surface needs to be opened with ventilation holes. Emergency frostbite treatment found that the freezing damage was immediately moved to an environment of 10-15℃ to slow down seedlings, cut off necrotic tissue, and sprayed brassinolide to promote recovery. Avoid heating up quickly to avoid secondary damage.
By systematically adjusting maintenance methods, African jasmine usually recovers in 2-3 weeks. It is recommended to establish a maintenance log to record changes in watering and fertilization time and environmental parameters to facilitate long-term observation and adjustment. Regularly wiping the leaves with a damp cloth can not only remove dust but also prevent pests such as red spiders.