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Description
Corylus Avellana Webbs Prize Cob, also known as the cobnut, is a deciduous shrub that belongs to the Betulaceae family. It is native to Europe and Western Asia and is widely grown for its edible nuts. The plant can grow up to 20 feet tall and has a spread of 15 feet. It produces large, round nuts that are enclosed in a husk.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Angiospermae |
| Order | Fagales |
| Family | Betulaceae |
| Genus | Corylus |
Appearance
The Corylus Avellana Webbs Prize Cob has a multi-stemmed, shrub-like habit with a dense canopy of leaves. The leaves are bright green, oval-shaped, and have a serrated edge. They grow up to 6 inches long and 4 inches wide. The plant produces male and female catkins in the early spring, with the male catkins being long and yellow, and the female catkins being short and red. The nuts, which mature in the fall, are large and round, with a diameter of around 2 centimeters.
Care Guide
The Corylus Avellana Webbs Prize Cob prefers well-drained soil that is rich in organic matter. It requires regular watering, especially during dry spells, and benefits from a light application of fertilizer in the spring. The plant prefers full sun to partial shade and is hardy in USDA zones 4-8.
Common Pests & Diseases
The Corylus Avellana Webbs Prize Cob is susceptible to a number of pests and diseases, including aphids, mites, powdery mildew, and bacterial canker. Regular inspection and treatment with insecticides and fungicides can help prevent and control these problems.
Habitat
The Corylus Avellana Webbs Prize Cob is native to Europe and Western Asia and is commonly found in woodlands, hedgerows, and gardens. It prefers moist, well-drained soils and can tolerate a range of temperatures and climatic conditions.
Question and Answer
Q: How long does it take for the Corylus Avellana Webbs Prize Cob to produce nuts?
A: The plant typically starts producing nuts after 3-4 years.
Q: Can the Corylus Avellana Webbs Prize Cob be grown in containers?
A: Yes, the plant can be grown in containers as long as it is provided with adequate space and nutrients.
Q: Is the Corylus Avellana Webbs Prize Cob self-fertile?
A: No, the plant requires cross-pollination with another variety of Corylus Avellana to produce nuts.
Q: What is the best time to prune the Corylus Avellana Webbs Prize Cob?
A: The plant should be pruned in the late winter or early spring before new growth appears.
Related Plants
- Corylus americana
- Corylus avellana
- Corylus colurna
- Corylus cornuta
- Corylus maxima
References
- “Corylus avellana.” Missouri Botanical Garden. Accessed June 20, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=e911.
- “Corylus avellana ‘Webb’s Prize Cob’.” Royal Horticultural Society. Accessed June 20, 2021. https://www.rhs.org.uk/Plants/13808/Corylus-avellana-Webb-s-Prize-Cob/Details.
- “Hazelnut, European.” Oregon State University. Accessed June 20, 2021. https://extension.oregonstate.edu/gardening/techniques/hazelnut-european.
