Ideal Temperature for Red alder
Images of Red alder
Signs of Cold Temperatures in Red alder
Symptoms
Red alder tolerates cold well and flourishes when temperatures are above 50℉. In winter, it needs to stay above 41℉. If temperatures drop below 32℉, while no immediate winter changes might be seen, branches can become brittle and dry in spring, with no new growth appearing.
Solutions
In spring, remove any dead branches that haven't produced new foliage.
Signs of High Temperatures in Red alder
Symptoms
In summer, Red alder should be maintained below 80℉. When temperatures go above 86℉, the plant's leaves might lighten in color, tips could dry and wither, and it becomes more prone to sunburn.
Solutions
Remove any sun-damaged and dried sections. Relocate the plant to a spot offering protection from midday and afternoon sun, or use a shade cloth for cover. Water the plant in the morning and evening to maintain soil moisture.
