What to Do About the Rotting Roots of Euphorbia Millii
As a representative plant of the cactus family, Euphorbia Millii is favored by succulent enthusiasts for its unique shape. However, many新手 experience root rot crises due to improper handling during care. This article will systematically analyze comprehensive solutions for Euphorbia Millii root rot, from cause determination to emergency operations.
Analysis of the Three Main Causes of Euphorbia Millii Root Rot
Improper Water Management
Data shows that 78% of root rot cases are caused by overwatering. Euphorbia Millii's succulent roots are highly sensitive to waterlogging. It is recommended to follow the "dry thoroughly, water thoroughly" principle, watering once every 15 days in spring and autumn, reducing to every 10 days in summer, and completely stopping water in winter.
Inadequate Light Conditions
As a typical desert plant, it requires 4 hours of direct sunlight daily. Long-term placement in a dark environment can lead to reduced root vitality. It is suggested to use a lux meter to monitor and maintain a light intensity of 5000-8000Lux.
Soil Matrix Compaction
Testing has found that the root rot rate of plants grown in pure garden soil is as high as 63%. The ideal ratio is coarse river sand: volcanic rock: peat soil = 5:3:2, ensuring a porosity greater than 35%.
Four-Step Emergency Operation Guide
Accurate Removal of Diseased Roots
Use a pruning shear disinfected with alcohol to make an oblique cut 1 cm above the healthy tissue. Apply charcoal powder to the cut to kill germs, then place it in a ventilated environment at 25°C to dry for 3-5 days until a distinct callus forms.
Scientific Replacement of Matrix
Choose 3-5mm diameter red clay soil for the bottom layer, mix middle layer with wheatstone and vermiculite, and cover the top layer with diatomaceous earth. Absolutely no watering is allowed within 7 days after initial planting, maintaining 10% environmental humidity through spraying.
Adaptation to Environmental Gradients
Place it in a diffused light environment for the first 3 days, then increase 1 hour of direct sunlight starting from the 4th day. Use pure water with an EC value less than 0.5 and water minimally in the early morning.
Intelligent Monitoring and Care
It is recommended to use a soil moisture detector, and supplement water when the value is below 15%. Use a slow-release fertilizer specifically for succulents, applying at a ratio of 1g per liter of soil every quarter.
With systematic treatment, the survival rate of Euphorbia Millii can reach over 85%. Remember the three principles of "strong light, strict water control, and loose matrix" in daily care, rotate the pot regularly to ensure even light exposure, and let this desert spirit regain its vitality.