The native growth environment of poison ivy varies from cool to warm temperate areas with temperatures ranging from 32 to 95 ℉ (0 to 35 ℃). It is observed that poison ivy grows well in areas with a median annual temperature of around 60 to 80 ℉ (16 to 27 ℃). During the winter season, poison ivy becomes dormant and can survive in temperatures as low as -22 ℉ (-30 ℃).
Poison ivy has strong cold resistance, so special frost protection measures are usually not necessary during winter. However, if the winter temperatures are expected to drop below {Limit_growth_temperature}, it is still important to provide cold protection. This can be achieved by wrapping the trunk and branches with materials such as non-woven fabric or cloth. Before the first freeze in autumn, it is recommended to water the plant abundantly, ensuring the soil remains moist and enters a frozen state. This helps prevent drought and water scarcity for the plant during winter and early spring.