Reasons for the Yellowing and Wilting of Aloe Vera Leaf Tips
When aloe vera leaves at home start to turn yellow at the tips and become wilted, many plant enthusiasts feel puzzled. This condition not only affects the ornamental value but also serves as a health alert from the plant. By observing the plant's growing environment and care details, we can accurately identify the root cause of the problem and take targeted measures.
Three Major Causes of Yellowing and Wilted Aloe Vera
Imbalance in Water Supply
Long-term water deficiency can lead to the atrophy of the water storage tissue in aloe vera leaves, with the leaf tips showing yellowing first. When the roots are unable to absorb water from dry soil, the leaves will appear wrinkled and wilted. However, excessive watering is equally dangerous, as waterlogging can cause root rot,阻碍 oxygen exchange, resulting in water-soaked yellowing of the leaves accompanied by soft rot.
Abnormal Light Intensity
Although aloe vera enjoys sunlight, more than 5 hours of direct sunlight during midday in summer can burn the leaf flesh cells. Leaves damaged by strong light will form sunspots, and the tip areas will gradually dry and carbonize. Conversely, in long-term shaded conditions, the plant will exhibit etiolation, with leaves becoming thin and soft.
Problems with Cultivation Substrate
Compact and heavy soil can affect root respiration, and using old soil that has not been changed for over 2 years can easily lead to salinization, causing nutrient absorption障碍. It is recommended to use sandy soil with 30% ceramic particles to ensure good drainage and aeration.
Targeted Solutions
Scientific Watering Plan
Keep a watering frequency of 15 days/week in spring and autumn, shorten it to 7-10 days in summer, and extend it to 25 days in winter. Using the immersion pot method for watering is more beneficial for the even absorption of roots, and each watering needs to ensure that water seeps out from the bottom drainage hole of the pot.
Light Environment Control
Use a shading net to filter 30% of the light intensity from April to October, and in winter, the plant can be exposed to full sunlight. Regularly rotate the pot to ensure even lighting for the plant, avoiding one-sided leaf burning.
Root System Maintenance
Check the roots every spring when repotting and trim any blackened or rotting roots. After soaking and sterilizing with a 800x solution of carbendazim, replant using newly prepared growing soil.
By establishing a regular care schedule and recording the time points for each watering, fertilizing, and pruning, when new leaves grow faster and the leaf color returns to a vibrant green, it indicates that the improvement measures have taken effect. Continuously observe the changes in the plant's condition, adjust the care plan in a timely manner, and you can bring the aloe vera back to a plump and healthy leaf state.