Ideal Temperature for Wavyleaf mullein
Images of Wavyleaf mullein
Signs of Cold Stress in Wavyleaf mullein
Symptoms
Wavyleaf mullein tolerates cold well and flourishes optimally when temperatures exceed 60℉. In winter, it needs to stay above 50℉. If the temperature drops below 40℉, while winter changes might not be obvious, reduced or absent sprouting could occur in spring.
Solutions
In spring, remove any sections that have not sprouted.
Signs of Heat Stress in Wavyleaf mullein
Symptoms
During summer, Wavyleaf mullein should be maintained below 75℉. When temperatures surpass 85℉, the plant's leaves might lighten, curl, become prone to sunburn, and in severe instances, the whole plant could wilt and dry out.
Solutions
Remove any sun-damaged and desiccated portions. Relocate the plant to a spot offering protection from midday and afternoon sun, or use a shade cloth. Water the plant in the morning and evening to maintain soil moisture.
