Ideal Temperature for Hardy canna
Images of Hardy canna
Signs of Cold Stress in Hardy canna
Symptoms
Hardy canna tolerates cold well and flourishes optimally when temperatures exceed 68℉. In winter, it needs to stay above 59℉. If temperatures drop below 50℉, while no immediate winter changes might be apparent, spring may see reduced or absent sprouting.
Solutions
In springtime, remove any sections that have not sprouted.
Signs of Heat Stress in Hardy canna
Symptoms
During summer, Hardy canna should be maintained below 77℉. When temperatures surpass 86℉, the plant's foliage might lighten, curl, become prone to sunburn, and in severe instances, the entire plant could wilt and dry out.
Solutions
Remove any parts that are sunburned and desiccated. 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.
