Ideal Temperature for Japanese sweet flag
Images of Japanese sweet flag
Signs of Cold Temperatures in Japanese sweet flag
Symptoms
Japanese sweet flag tolerates cold well and flourishes optimally when temperatures exceed 65℉. In winter, maintain temperatures above 50℉. If temperatures drop below 40℉, while winter changes might not be obvious, spring may see reduced or absent sprouting.
Solutions
In spring, remove any sections that have not sprouted.
Signs of High Temperatures in Japanese sweet flag
Symptoms
In summer, Japanese sweet flag should be kept below 75℉. When temperatures surpass 85℉, the plant's leaves might lighten, curl, become prone to sunburn, and in severe cases, the whole plant could 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.
