Picea Koraiensis

Description

Picea Koraiensis, commonly known as the Korean Spruce or the Oriental Spruce, is a slow-growing evergreen tree that belongs to the Pinaceae family. It is native to northeastern Asia, particularly Korea, China, and parts of Russia. It has a conical shape with a pointed top and can grow up to 30-60 feet tall and 20-30 feet wide when mature. Its needles are short and stiff, measuring around 0.5-1 inch long and are a bluish-green color. The bark is thin and grayish-brown, and the cones are cylindrical and measure around 3-6 inches long.

Taxonomic Information

Appearance

Picea Koraiensis has a distinct conical shape with a pointed top, making it an attractive ornamental tree for landscaping purposes. It has a slow growth rate, which means it can take several years to reach maturity. Its needles are short and stiff, measuring around 0.5-1 inch long and are a bluish-green color. Its bark is thin and grayish-brown, and the cones are cylindrical and measure around 3-6 inches long. The tree’s overall appearance is elegant and refined, making it a popular choice for gardens and parks.

Care Guide

Picea Koraiensis is a hardy tree that can tolerate a range of growing conditions. Here are some care tips to help your tree thrive:

• Water: Water your tree regularly, especially during hot and dry weather. The soil should be moist but not waterlogged.
• Fertilization: Fertilize your tree in the spring with a slow-release fertilizer. Avoid fertilizing in the fall, as this can encourage new growth that may not have time to harden before winter.
• Soil: The tree prefers well-drained soil that is slightly acidic. Avoid planting in heavy clay soils, as this can impede root growth.
• Sunlight: The tree prefers full sun to partial shade. Avoid planting in areas with strong winds or extreme temperatures.
• Hardiness Zones: Picea Koraiensis is hardy in USDA zones 3-7.

Common Pests & Diseases

Picea Koraiensis is generally a healthy tree that is resistant to most pests and diseases. However, some common issues to look out for include:

• Spider Mites: These tiny pests can cause discoloration and damage to the tree’s needles. Use an insecticidal soap to control infestations.
• Aphids: These pests can cause yellowing and distortion of the tree’s needles. They can be controlled with insecticidal soap or a strong stream of water.
• Root Rot: Overwatering or poorly-drained soil can cause root rot, which can eventually kill the tree. Avoid planting in heavy clay soils and make sure the soil is well-drained.

Habitat

Picea Koraiensis is native to northeastern Asia, particularly Korea, China, and parts of Russia. It prefers cool, moist climates and is often found in mountainous regions. It is a hardy tree that can tolerate a range of growing conditions, including cold temperatures and drought.

Questions and Answers

Q: Is Picea Koraiensis a fast-growing tree?

A: No, Picea Koraiensis is a slow-growing tree that can take several years to reach maturity.

Q: What is the tree’s preferred soil type?

A: Picea Koraiensis prefers well-drained soil that is slightly acidic.

Q: What are some common pests and diseases that can affect Picea Koraiensis?

A: Some common pests and diseases include spider mites, aphids, and root rot.

Q: What is the tree’s hardiness zone?

A: Picea Koraiensis is hardy in USDA zones 3-7.

Related Plants

• Picea Abies (Norway Spruce)
• Picea Glauca (White Spruce)
• Picea Pungens (Blue Spruce)
• Picea Mariana (Black Spruce)

References

• Dirr, Michael A. Manual of Woody Landscape Plants: Their Identification, Ornamental Characteristics, Culture, Propagation and Uses. Champaign, Ill: Stipes Pub., 1998. Print.
• “Picea Koraiensis.” Missouri Botanical Garden. Missouri Botanical Garden, n.d. Web. 05 Nov. 2016.
• “Plant Profile for Picea Koraiensis (Korean Spruce).” USDA NRCS. USDA, n.d. Web. 05 Nov. 2016.