Ideal Temperature for Blue iris
Images of Blue iris
Signs of Cold Stress in Blue iris
Symptoms
Blue iris tolerates cold well and flourishes when temperatures exceed 60℉. In winter, maintain temperatures above 50℉. If temperatures drop below 45℉, while winter changes might be unnoticeable, spring may see reduced or absent sprouting.
Solutions
In spring, remove any sections that have not sprouted.
Signs of Heat Stress in Blue iris
Symptoms
In summer, Blue iris should be kept below 75℉. When temperatures surpass 85℉, plant leaves may lighten, curl, become prone to sunburn, and in severe cases, the whole plant might wilt and dry out.
Solutions
Remove any sun-damaged and desiccated portions. Relocate the plant to a spot offering protection from the midday and afternoon sun, or use a shade cloth. Water the plant in the morning and evening to maintain soil moisture.
