Ideal Temperature for Giant ironweed
Images of Giant ironweed
Signs of Cold Stress in Giant ironweed
Symptoms
Giant ironweed tolerates cold well and flourishes optimally when temperatures exceed 60℉. In winter, maintain temperatures above 50℉. If temperatures drop below 40℉, 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 Giant ironweed
Symptoms
In summer, Giant ironweed should be kept below 80℉. When temperatures surpass 90℉, the plant's foliage may lighten, curl, become prone to sunburn, and in severe instances, the entire plant might wilt and dry out.
Solutions
Remove any sun-damaged and desiccated portions. Relocate the plant to a spot offering midday and afternoon shade, or use a shade cloth. Water the plant in the morning and evening to maintain soil moisture.
