Ideal Temperature for Spearmint
Images of Spearmint
Signs of Cold Stress in Spearmint
Symptoms
Spearmint tolerates cold well and grows optimally when temperatures are above 60℉. In winter, it needs to stay above 50℉. If temperatures drop below 32℉, while winter changes might not be obvious, spring may see reduced or absent sprouting.
Solutions
In spring, remove any sections that did not sprout.
Signs of Heat Stress in Spearmint
Symptoms
In summer, Spearmint should be maintained below 70℉. When temperatures exceed 80℉, the plant's leaves might lighten, curl, suffer 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.
