How to Care for Oxalis in Summer
As a popular ornamental plant among gardening enthusiasts, Oxalis faces severe challenges in the high-temperature environment of summer. Prolonged high temperatures above 35°C can easily lead to leaf scorch and root rot. This article will provide a detailed analysis of the secrets to keeping Oxalis safe during the summer from four core dimensions.
Sunlight Management Plan
1.1 Control of Light Intensity
It is recommended to use a shade net with a shading rate of 40-60%, providing protection during the 10:00-16:00 time slot. A professional light meter can be used to monitor light intensity, keeping the value between 15000-30000 lux.
1.2 Adjustment Techniques for Orientation
The best placement is on an east-facing balcony, receiving soft morning light while avoiding strong midday sunlight. Rotate the pot by 45 degrees every two weeks to ensure even light exposure to the plant.
Temperature Control System
2.1 Environmental Cooling Strategy
Use a double-layer cooling method: place a water-absorbent asbestos pad at the bottom of the pot to dissipate heat through evaporation;配合 a small circulation fan to keep the air moving, which can reduce the local temperature by 3-5°C.
2.2 Emergency Response Plan
When the temperature exceeds 35°C, wrap the pot with ice packs (avoiding direct contact with the roots), and combine with foliar application of seaweed extract to enhance stress resistance.
Water Management Regulations
3.1 Irrigation Time Selection
Adopt the segmented irrigation method in the early morning (6:00-8:00) and at dusk (18:00-19:30), with each watering amount not exceeding 1/3 of the pot's volume. Use a thermometer to monitor the water temperature, ensuring the difference between the water temperature and the soil temperature is ≤3°C.
3.2 Humidity Control Techniques
Place humidity monitors around the plant and use a misting humidifier to maintain 60-70% air humidity. Before the rainy season, lay a layer of volcanic stones on the surface of the potting soil for drainage.
Optimization of Ventilation System
4.1 Air Circulation Plan
Use the diagonal window opening method to create air circulation, install a small wind speed meter to monitor wind speed, and keep the air velocity within the range of 0.5-1.2 m/s. Clean the dust accumulated on the back of the leaves with an air blower every three days.
4.2 Disease Prevention Measures
Alternately spray neem oil (1:200) and baking soda solution (5g/L) weekly, which can effectively prevent common summer diseases such as spider mites and powdery mildew.
By following the above four-dimensional care system, combined with regular observation of leaf conditions (check the leaf tip burning every week), and using an EC value tester to monitor soil salinity (maintaining <1.2 mS/cm), you can ensure that Oxalis safely survives the hot summer. It is recommended to establish a care log, recording daily temperature and humidity changes and the plant's response, gradually optimizing the care plan.