Ideal Temperature for Garden cosmos
Images of Garden cosmos
Signs of Cold Stress in Garden cosmos
Symptoms
Garden cosmos tolerates cold well and flourishes best when temperatures exceed 60℉. In winter, it needs to stay above 50℉. If temperatures drop below 40℉, 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 Garden cosmos
Symptoms
In summer, Garden cosmos should be maintained below 75℉. When temperatures surpass 85℉, 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 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.
