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Description
Quercus Robur Fastigiata Koster, commonly known as the Koster columnar oak, is a deciduous tree with a unique fastigiate form. It has a narrow, columnar shape, growing up to 15 meters tall and 4 meters wide. Quercus Robur Fastigiata Koster has an interesting feature of leaves that are deeply lobed with wavy margins. It is a cultivar of Quercus Robur, native to Europe and Asia.
Taxonomic Information
| Domain | Eukarya |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Fagales |
| Family | Fagaceae |
| Genus | Quercus |
Appearance
Quercus Robur Fastigiata Koster has a unique columnar shape, with a narrow trunk and branches that are upright and straight. Its leaves are deeply lobed, with wavy margins and a glossy, dark green color. The leaves turn yellow-brown in the fall, adding to the tree’s autumn beauty. The tree produces acorns that are small, with a shallow cap, and mature in the fall.
Care Guide
Quercus Robur Fastigiata Koster requires moderate watering, especially during hot and dry periods. It prefers well-drained soil that is rich in organic matter. Fertilize the tree in the spring with a balanced fertilizer. The tree needs full sun exposure, but it can tolerate some shade. Quercus Robur Fastigiata Koster is hardy in USDA Hardiness Zones 4-7.
Common Pests & Diseases
Quercus Robur Fastigiata Koster is resistant to most pests and diseases. However, it is susceptible to oak wilt, a fungal disease that can infect the tree through wounds or insect damage. Symptoms of oak wilt include wilting leaves, leaf discoloration, and leaf drop. To prevent oak wilt, avoid pruning during the growing season and keep the tree healthy with proper care.
Habitat
Quercus Robur Fastigiata Koster is native to Europe and Asia and can be found in parks, gardens, and urban areas. It prefers well-drained soil and full sun exposure.
Question and Answer
Q: How tall does Quercus Robur Fastigiata Koster grow?
A: Quercus Robur Fastigiata Koster can grow up to 15 meters tall.
Q: Is Quercus Robur Fastigiata Koster resistant to pests and diseases?
A: Quercus Robur Fastigiata Koster is resistant to most pests and diseases, but it can be susceptible to oak wilt.
Q: What is the shape of Quercus Robur Fastigiata Koster?
A: Quercus Robur Fastigiata Koster has a narrow, columnar shape.
Q: What is the hardiness zone for Quercus Robur Fastigiata Koster?
A: Quercus Robur Fastigiata Koster is hardy in USDA Hardiness Zones 4-7.
Related Plants
- Quercus Robur
- Quercus Palustris
- Quercus Alba
- Quercus Rubra
References
- “Quercus Robur Fastigiata Koster.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=286656&isprofile=0&. Accessed 21 Sept. 2021.
- “Quercus Robur Fastigiata Koster.” Royal Horticultural Society, www.rhs.org.uk/Plants/127966/i-Quercus-robur-i-Fastigiata-Koster/Details. Accessed 21 Sept. 2021.
- “Quercus Robur Fastigiata.” Monrovia, www.monrovia.com/plant-catalog/plants/2206/fastigiata-columnar-oak/. Accessed 21 Sept. 2021.
