Spruce pine (Pinus glabra)

Spruce pine

Also known as: Cedar pine, American spruce pine

This pine is a straight-growing, medium-sized species, attaining heights of 20 to 40 m. The leaves are needle-like, in bundles of two, 5 to 8 cm long, slender (1 mm thick), and glossy dark green. The small, slender cones are 4 to 6 cm long, with weak prickles on the scales that are soon shed.

Scientific classification

Species

Spruce pine (Pinus glabra)

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Perennial

Lifespan

Tree

Plant Type

Spring

Bloom Time

9 m to 18 m

Plant Height

8 m to 12 m

Spread

Green

Leaf Color

Gray, Silver, Red, Purple, Burgundy, Lavender

Stem Color

Evergreen

Leaf type

0 - 32 ℃

Ideal Temperature

Images of Spruce pine

Attributes of Spruce pine

Growth Rate

During the active growth seasons of spring and summer, spruce pine exhibits a rapid rate of growth, significantly expanding its canopy with persistent needle production. The quickened growth rhythm also prompts a pronounced height increase, enhancing spruce pine's typical stature. Seasonal growth fluctuations may apply, but the spring-summer timeline epitomizes spruce pine's vigorous growth.

Quickly Identify Spruce pine

Evergreen tree reaching 40-50 feet (12-15 meters) tall with irregular solitary growth in wetlands.

Dark green needles, 2-4 inches (5-10 cm) long, arranged in pairs with slender, flexible form.

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Care Guide for Spruce pine

Every 1-2 weeks

Water

Full sun

Sunlight

0 - 32 ℃

Ideal Temperature

Water: Spruce pine thrives in humid subtropical regions, requiring consistent moisture without waterlogging. Water every 1-2 weeks for even soil moisture. As an evergreen, it needs steady hydration to support year-round growth and needle health, particularly in outdoor conditions.

Fertilize: For optimal growth, fertilize spruce pine biannually in spring and fall with balanced, slow-release fertilizers. Adjust nutrient levels seasonally: less in winter, more in spring. Always water spruce pine thoroughly after fertilization to enhance nutrient absorption and prevent root burn, ensuring healthy growth without adverse impacts.

Pruning: Spruce pine thrives with strategic pruning between early to late winter. Remove dead or diseased branches to enhance air circulation and prevent pathogens. Thinning crowded areas promotes sunlight penetration, supporting healthier growth while maintaining shape and size for an aesthetically pleasing appearance.

Propagation: Spruce pine propagation involves sowing seeds in a well-drained substrate with consistent moisture. A stable environment is crucial for germination. Careful transplanting of seedlings is necessary to protect roots, and regular monitoring for pests and diseases is essential for healthy growth.

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