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Euphorbia milii 'K', as a star variety among succulents, is deeply loved by gardening enthusiasts for its unique patterned leaves. However, the low temperature in winter can easily cause leaf frostbite and root rot. Mastering scientific overwintering care methods is essential for the plant to safely survive the cold winter. This article will provide a detailed analysis of the complete care guide for Euphorbia milii 'K' in winter from three dimensions: temperature control, environmental optimization, and water management.
Winter Temperature Management for Euphorbia milii 'K'
Safe Temperature Range Control
When the ambient temperature drops below 10℃, Euphorbia milii 'K' will enter a dormant state. It is recommended to maintain a day-night temperature difference of 5-8℃. In northern regions, special attention should be paid to cold wave warnings. When the nighttime temperature may drop below 5℃, immediate heating measures should be taken. This can be done by wrapping insulating cotton around the pot or using plant growth lights to create a locally warm environment.
Keep Away from Artificial Heat Sources
The plant should be kept at a safe distance of more than 2 meters from radiators, and users of floor heating should place an insulating tray under the pot. When caring for the plant in an air-conditioned room, avoid direct exposure to the air outlet. It is recommended to use a hygrometer to monitor. When the air humidity is below 40%, use a humidifier.
Winter Environmental Regulation for Euphorbia milii 'K'
Windbreak Barrier Setup
A temporary windbreak shield can be set up on the windowsill. Using transparent acrylic boards can block the wind without affecting light absorption. It is advisable to open the windows for ventilation during the high temperature period at noon (11:00-14:00) for 30-45 minutes each time, which can meet the ventilation needs.
Optimizing Light Intensity
In winter, ensure at least 4 hours of direct sunlight daily, and supplement lighting with full-spectrum plant lights if necessary. It is recommended to hang the lamp 30-50cm above the plant, with 6 hours of supplemental lighting daily for the best effect.
Winter Water Management for Euphorbia milii 'K'
Adopt the principle of "soak when dry". The soil moisture can be tested with a bamboo stake: insert the bamboo stake into the potting soil to a depth of 2/3, wait for 5 minutes, and then observe. In winter, it is recommended to water 1-2 times a month, with water temperature consistent with room temperature to avoid shocking the roots with cold water. Phosphorus and potassium fertilizer (0.1% concentration) can be applied to enhance cold resistance.
Through precise temperature control, scientific environmental regulation, and strict water management, Euphorbia milii 'K' can not only safely overwinter but also accumulate nutrients for explosive growth in spring. It is recommended to check monthly for frostbite or brown spots at the base of the plant and adjust the care plan in a timely manner to allow this precious succulent to continue to show its unique patterned charm.