Ideal Temperature for Purple viper's bugloss
Images of Purple viper's bugloss
Signs of Cold Stress in Purple viper's bugloss
Symptoms
Purple viper's bugloss tolerates cold well and grows optimally when temperatures are above 60℉. In winter, maintain temperatures above 55℉. If temperatures drop below 50℉, 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 Heat Stress in Purple viper's bugloss
Symptoms
In summer, Purple viper's bugloss should be kept below 75℉. When temperatures go above 80℉, the plant's leaves might lighten, curl, get sunburned, and in severe cases, the whole plant could wilt and dry out.
Solutions
Remove any parts that are sunburned and dried. 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.
