In its native growth environment, blue spruce thrives in temperatures ranging from -40 to 23 ℉ (-40 to -5 ℃). However, it can adapt to temperatures between 0 to 32 ℉ (-18 to 0 ℃) and prefers cooler temperatures. During the winter, it is important to ensure that the plant is not exposed to sudden temperature changes that can damage its roots.
Regional wintering strategies
Blue spruce is highly cold-tolerant and does not require additional frost protection measures during winter. However, before the first freeze in autumn, it is recommended to water the plant generously to ensure the soil remains moist and enters a frozen state. This helps prevent drought and water scarcity for the plant during winter and early spring.