Ideal Temperature for Fernald's iris
Images of Fernald's iris
Signs of Cold Stress in Fernald's iris
Symptoms
Fernald's iris favors warm conditions and cannot withstand cold. It flourishes best when temperatures exceed 60℉. In winter, maintain temperatures above 50℉. If the temperature drops below 40℉, foliage may lose color. Post-frost damage, leaves progressively turn brown or black, and signs like wilting and drooping might appear.
Solutions
Remove any parts damaged by frost. Promptly relocate indoors to a warm setting for cold protection. Position the plant near a south-facing window to ensure sufficient light. Furthermore, avoid placing it near heating units or AC vents to prevent excessive air dryness.
Signs of Heat Stress in Fernald's iris
Symptoms
In summer, Fernald's iris should be kept below 75℉. When temperatures surpass 85℉, leaf coloration fades, and the plant becomes more prone to sunburn.
Solutions
Prune off any sun-scorched and desiccated sections. Relocate the plant to an area offering shade from the midday and afternoon sun. Water the plant during the morning and evening to maintain soil moisture.
