Ideal Temperature for Cardinal flower
Images of Cardinal flower
Signs of Cold Stress in Cardinal flower
Symptoms
Cardinal flower tolerates cold well and flourishes optimally when temperatures exceed 60℉. In winter, it needs to stay above 50℉. If temperatures drop below 32℉, while no immediate winter changes might be apparent, spring may see reduced or absent sprouting.
Solutions
In spring, remove any sections that have not sprouted.
Signs of Heat Stress in Cardinal flower
Symptoms
In summer, Cardinal flower should be maintained below 80℉. When temperatures surpass 85℉, the plant's foliage may lighten, curl easily, be prone to sunburn, and in severe instances, the whole plant might wilt and desiccate.
Solutions
Remove any sun-damaged and dried-out portions. Relocate the plant to a spot offering protection from midday and afternoon sun, or use a shade fabric. Water the plant in the morning and evening to maintain soil moisture.
