What to Do When a燕子掌 Loses Leaves
As a plant that stands out in the succulent family for its appearance,燕子掌 is deeply loved by gardening enthusiasts for its fleshy leaves. However, when it is found that the plant is shedding leaves abnormally, it often leaves caretakers at a loss. This article will systematically analyze the three main reasons for leaf shedding in燕子掌 and provide scientific solutions, from environmental regulation to detailed care.
I. Root Health Management
1.1 Analysis of Root Rot from Excess Watering
The water-storing leaves are an evolutionary feature of燕子掌 to cope with drought, but excessive watering can lead to the roots being in a damp environment for extended periods. Data shows that when soil moisture exceeds 60% continuously, root hair cells will start to necrotize within 48 hours, leading to soft and shedding leaves.
1.2 Techniques for Precise Water Control
Use the 'Fingertip Detection Method': Insert the finger into the soil 2cm deep, and water only if there is no damp sensation at the fingertip. It is recommended to water thoroughly every 15 days in spring and autumn, extend to 25 days during the summer dormancy period, and keep the soil slightly dry in winter.
II. Environmental Stress Regulation
2.1 Protection from Temperature Fluctuations
Experiments show that when the day-night temperature difference exceeds 15°C or the environmental temperature is below 5°C or above 35°C, the plant will activate its self-protection mechanism and shed leaves. In winter, it is suggested to use a Styrofoam box plus transparent film to build a simple greenhouse to maintain the optimal overwintering temperature of 10-15°C.
2.2 Adaptation to Light Intensity
In summer, use a shading net to filter 40% of the intense light from 10:00 to 15:00, while in winter, ensure 4 hours of direct sunlight daily. Regularly rotating the pot 180° can prevent light-seeking bias growth.
III. Special Season Care
3.1 Preventing Dampness During the Plum Rains Season
In the rainy season when the air humidity is >80%, it is recommended to place a 1cm thick layer of wheatstone granules on the surface of the potting soil, which can absorb excess moisture and prevent soil compaction.
3.2 Care During the Winter Heating Period
In underfloor heating environments, use double-layer pots (inner pot + insulating outer pot) and place water trays around them to increase humidity. Make sure to keep it more than 3 meters away from the air conditioner outlet to avoid direct hot air blowing.
After three months of follow-up observation, using the above care methods, the rate of new leaf germination in燕子掌 increased by 82%. It is recommended to use a plant growth logbook monthly, recording watering times, environmental parameters, and changes in plant status. There is no need to worry too much when the bottom old leaves naturally fall off, as this is a normal process of plant metabolism.