What to Do When Jasmine Leaves Dry Up
Jasmine leaf drying is a common cultivation challenge, with seemingly simple symptoms that may hide underlying issues such as root damage and metabolic abnormalities. This article analyzes four core scenarios to help you identify the cause and master a systematic solution, bringing the plant back to a healthy, glossy green.
Four Main Causes of Jasmine Leaf Drying
Natural Metabolism During Dormancy
When temperatures drop below 15°C in autumn and winter, jasmine activates a dormancy protection mechanism. New leaves stop growing, and the edges of old leaves gradually lignify, showing a uniform light brown dryness, which is a normal physiological phenomenon.
Rescue steps: When pruning, observe the color of the cut. Black withered branches need to be completely cut off, and green branches should be retained with a 3-5cm base. Apply phosphorus-potassium fertilizer before the sprouting in March of the following year to stimulate new buds.
Root Rot from Waterlogging
When there is continuous rain or excessive watering, soil moisture content >70% will impede root respiration. Initially, tender leaves wilt, and later, old leaves show water-stained brown spots, with severe cases leading to the whole plant's leaves drying up.
Emergency treatment: Immediately adopt the "sandwich rescue method": place broken tiles at the bottom to elevate the drainage layer, replace the middle layer with perlite mixed soil, and cover the top layer with pine needles to maintain breathability. Water the roots with a 800x solution of carbendazim every week for disinfection.
Phosphate Burn Syndrome
When nitrogen fertilizer is excessive, the leaf tips show the first signs of drying, while an excess of phosphorus-potassium fertilizer causes leaf edges to curl and turn black. Unripe organic fertilizer can produce ammonia burns, showing as sudden large-scale browning of leaves.
Remedy: Immediately rinse the potting soil with water three times. In severe cases, change the soil and cut off 1/3 of the roots. During the recovery period, spray the leaves with a 2000x solution of seaweed extract, twice a week to supplement nutrients.
Advanced Maintenance Techniques
Prevention is better than cure. It is recommended to use acidic nutrient soil with a pH of 5.5-6.5 and apply a solution of ferrous sulfate once a month in spring and autumn. Set up a 40% shade net to avoid direct sunlight and maintain an environmental humidity of 60%-70% to effectively prevent leaf blight.
By accurately identifying the causes of leaf drying and taking corresponding measures, combined with scientific environmental control, your jasmine will certainly return to its flourishing state of "jade-like green leaves, with a fragrant room filled with beauty."