Jasmine Green Leaves Dry and Fall Off
Jasmine leaf edges become dry and curl, and the leaves fall off one after another, which is a common problem encountered by many gardening enthusiasts. As a typical subtropical plant, jasmine has special requirements for its growing environment, and any slight negligence will trigger warning signals through the leaf condition. This article will systematically analyze the five major causes of abnormal jasmine leaves through illustrative methods and provide targeted rescue solutions.
One, Key Points for Healthy Root Care
1.1 Scientific Watering to Control Moisture
Jasmine roots are susceptible to both waterlogging and drought, and improper watering is the primary factor causing leaf problems. It is recommended to check the potting soil every morning during spring and summer, and water thoroughly when the top 2cm of soil turns white. In winter, follow the "dry-wet" principle, extending the interval to 5-7 days. Special tip: Using red陶 clay pots can enhance breathability, while plastic pots require a 3cm layer of陶粒 at the bottom.
1.2 Reasonable Fertilization to Prevent Root Burning
During the growing season (April-September), apply diluted jasmine-specific liquid fertilizer (1000 times) every half month, and increase phosphorus and potassium fertilizer during the budding stage. If fertilizer damage occurs, immediately rinse the potting soil with water three times, prune the blackened roots, and replace the soil. It is recommended to use microbial bacterial fertilizer, which can increase fertilizer utilization by 30%.
Two, Key Measures for Environmental Regulation
2.1 Temperature Management to Prevent Frostbite
Jasmine requires a safe winter temperature of 12℃ or higher. In northern regions, it should be moved indoors by mid-October, and when using a double-layer insulation shed, make sure to ventilate for 2 hours daily. In case of sudden cold waves, wrap the pot with cotton cloth and spray the leaf surface with an antifreeze agent (1:500 seaweed extract solution).
2.2 Light Adjustment to Avoid Sunburn
Strong sunlight in summer can cause brown sunburn spots on the leaf surface. It is recommended to use a 50% shade net. In winter, ensure 4 hours of direct sunlight daily, and maintain a 30cm distance when using a plant grow light. Regularly rotate the pot to ensure even light exposure from all directions.
Three, Comprehensive Pest and Disease Control
Red spiders are common in dry environments and can be wiped off the leaf backs weekly with a damp cloth. Scale insects can be treated with 75% alcohol applied locally. Regularly spraying neem extract (1:200) can prevent most insect pests. For diseases, (T-J) disease can be effectively treated in its early stages with a garlic extract solution (1:10).
By adjusting the watering rhythm, improving the fertilization method, and controlling environmental parameters in a three-in-one care strategy, combined with pest and disease prevention, jasmine plants usually recover within 2-3 weeks. Remember to regularly check the leaf backs and gently shake the branches during daily maintenance. If more than 1/3 of the leaves fall off, immediate rescue measures should be taken.