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Description
Picea Jezoensis, also known as Jezo Spruce, is a species of evergreen tree that is native to Japan, Korea, and the Kuril Islands. It belongs to the Pinaceae family and is a popular ornamental tree in temperate regions. The tree is named after the island of Hokkaido, which used to be called Jezo by the Ainu people.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Pinophyta |
| Class | Pinopsida |
| Order | Pinales |
| Family | Pinaceae |
| Genus | Picea |
Appearance
Picea Jezoensis is a large evergreen tree that can grow up to 40 meters tall. It has a conical shape with a straight trunk and horizontal branches that droop at the ends. The tree has small, needle-like leaves that are blue-green in color and about 2-3 centimeters long. The cones are cylindrical and can grow up to 15 centimeters long.
Care Guide
Picea Jezoensis is a hardy tree that is relatively easy to care for. Here are some tips for keeping your tree healthy:
- Water: Water your tree regularly, especially during dry spells. Make sure the soil is moist but not waterlogged.
- Fertilization: Fertilize your tree once a year in the spring with a slow-release fertilizer.
- Soil: Picea Jezoensis prefers well-drained soil that is slightly acidic.
- Sunlight: The tree prefers full sun to partial shade.
- Hardiness Zones: Picea Jezoensis is hardy to USDA zones 3 to 7.
Common Pests & Diseases
Picea Jezoensis is relatively resistant to pests and diseases, but here are some issues to watch out for:
- Spider mites: These tiny pests can cause leaves to yellow and fall off. Use a miticide to control them.
- Aphids: These sap-sucking insects can cause leaves to curl and distort. Use an insecticidal soap to control them.
- Root rot: Overwatering can cause the roots to rot. Make sure the soil is well-drained and don’t water too much.
Habitat
Picea Jezoensis is native to the temperate regions of Japan, Korea, and the Kuril Islands. The tree prefers cool, moist climates and can be found in mountainous regions and along riverbanks.
Question and Answer
Q: Can Picea Jezoensis be grown in containers?
A: Yes, Picea Jezoensis can be grown in containers, but make sure the container is large enough to accommodate the tree’s roots.
Q: Can Picea Jezoensis be grown in hot climates?
A: No, Picea Jezoensis prefers cool, moist climates and may not survive in hot, dry areas.
Q: How fast does Picea Jezoensis grow?
A: Picea Jezoensis is a slow-growing tree, averaging about 30 centimeters of growth per year.
Q: Are Picea Jezoensis trees drought-tolerant?
A: No, Picea Jezoensis prefers moist soil and may not survive extended periods of drought.
Related Plants
- Picea abies (Norway spruce)
- Picea glauca (White spruce)
- Picea mariana (Black spruce)
- Picea omorika (Serbian spruce)
References
- “Picea jezoensis,” Missouri Botanical Garden, accessed August 20, 2021, https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=j860
- “Jezo spruce,” Encyclopaedia Britannica, accessed August 20, 2021, https://www.britannica.com/plant/Jezo-spruce
- “Picea jezoensis,” Plants of the World Online, accessed August 20, 2021, http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:263434-1
