Ideal Temperature for Black horehound
Images of Black horehound
Signs of Cold Temperatures in Black horehound
Symptoms
Black horehound tolerates cold well and flourishes when temperatures are above 60℉. In winter, maintain temperatures above 50℉. If temperatures drop below 40℉, while winter changes might not be obvious, spring sprouting could be reduced or absent.
Solutions
In spring, remove any parts that haven't sprouted.
Signs of High Temperatures in Black horehound
Symptoms
In summer, Black horehound should be kept below 70℉. When temperatures exceed 80℉, leaves may lighten, curl, become prone to sunburn, and in severe cases, the whole plant might wilt and dry out.
Solutions
Remove any sunburned and dried sections. Relocate the plant to a spot shaded from midday and afternoon sun, or use a shade cloth. Water the plant in the morning and evening to maintain soil moisture.
