Ideal Temperature Range for White spruce

(Picea glauca)

White spruce, also known as Canadian spruce

The white spruce is a temperate woody plant that prefers a temperature range of 32 to 77 ℉ (0 to 25 ℃). Its native growth environment related to temperature requirements is in cooler climates with average temperatures ranging from -22 to 30 ℉ (-30 to -1 ℃). In colder seasons, it can adjust to temperatures as low as -58 ℉ (-50 ℃) by becoming dormant.

What Is the Ideal Temperature Range for White spruce?

Ideal

Tolerable

Unsuitable

As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share.

Temperature Essentials for White spruce

Regional wintering strategies

White 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.

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Signs of Low and High Temperature in White spruce

Symptoms of Low Temperature in White spruce

White spruce is extremely cold-tolerant, but the winter temperature should be maintained above -40°C. If the temperature drops below this threshold, although there may not be any noticeable changes during winter, the branches may become brittle and dry during springtime, and no new shoots will emerge.

Solutions for Low Temperature in White spruce

In spring, prune away any dead branches that have failed to produce new leaves.

Symptoms of High Temperature in White spruce

White spruce is not tolerant to high temperatures. When the temperature exceeds 25°C, it may experience significant leaf drop, and in severe cases, the entire plant may wither and die.

Solutions for High Temperature in White spruce

Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun, or use a shade cloth to create shade. Water the plant in the morning and evening to keep the soil moist.