Ideal Temperature for Hyssop
Images of Hyssop
Signs of Cold Stress in Hyssop
Symptoms
Hyssop tolerates cold well and flourishes optimally when temperatures exceed 65℉. In winter, it needs to be maintained above 59℉. If temperatures drop below 41℉, while winter changes might not be obvious, spring may see reduced or absent sprouting.
Solutions
In spring, remove any sections that have not sprouted.
Signs of Heat Stress in Hyssop
Symptoms
In summer, Hyssop should be kept below 77℉. When temperatures surpass 86℉, 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 parts that are sunburned and desiccated. 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.
