Signs of Low and High Temperature in Japanese prickly ash
Symptoms of Low Temperature in Japanese prickly ash
Japanese prickly ash has moderate tolerance to low temperatures and thrives best when the temperature is between 20°C and 35°C. During winter, it should be kept above 0°C. When the temperature falls below -25°C, the leaves may darken in color. In severe cases, water-soaked necrosis, wilting, and drooping may occur, and the color of the leaves gradually turns brown.
Solutions for Low Temperature in Japanese prickly ash
Trim away the frost-damaged parts. Immediately move indoors to a warm environment or set up a makeshift greenhouse for cold protection. When placing the plant indoors, choose a location near a south-facing window to ensure ample
sunlight. If there is insufficient light, you can use supplemental
lighting.
Symptoms of High Temperature in Japanese prickly ash
During summer, Japanese prickly ash should be kept below 35°C. When the temperature exceeds 38°C, the plant's growth slows down, the color of its leaves becomes lighter, and it becomes more susceptible to sunburn.
Solutions for High Temperature in Japanese prickly ash
Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the afternoon sun. Water the plant in the morning and evening to keep the soil moist.
