Ideal Temperature for Japanese holly
Images of Japanese holly
Signs of Cold Stress in Japanese holly
Symptoms
Japanese holly tolerates cold well and flourishes optimally when temperatures exceed 65℉. In winter, maintain temperatures above 59℉. If temperatures drop below 50℉, while winter changes might be subtle, branches can become brittle and dry by spring, with no new growth appearing.
Solutions
In spring, remove any dead branches that have not produced new foliage.
Signs of Heat Stress in Japanese holly
Symptoms
During summer, Japanese holly should be maintained below 77℉. When temperatures surpass 86℉, the plant's leaves may lighten, tips might dry and shrivel, and it becomes more prone to sun damage.
Solutions
Remove any sun-damaged and desiccated sections. Relocate the plant to a spot offering protection from the midday and afternoon sun, or use a shade fabric to provide cover. Water the plant in the morning and evening to maintain soil moisture.
