Ideal Temperature for Black alder
Images of Black alder
Signs of Cold Stress in Black alder
Symptoms
Black alder exhibits exceptional cold hardiness, but winter temperatures should remain above 23℉. Should the temperature fall below this point, while no immediate changes might be apparent in winter, branches could become fragile and parched by spring, with no new growth appearing.
Solutions
During spring, remove any lifeless branches that have not developed fresh foliage.
Signs of Heat Stress in Black alder
Symptoms
Black alder does not thrive in elevated temperatures. When the temperature surpasses 77℉, it can lead to considerable leaf shedding, and in extreme instances, the entire plant may wilt and perish.
Solutions
Remove any parts that are scorched and dried out. Relocate the plant to an area offering protection from the midday and afternoon sun, or employ a shade cloth for cover. Hydrate the plant in the morning and evening to maintain soil moisture.
