Corylus colurna

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Corylus colurna
Light:Full Sun Part Shade
Moisture:Mesic
Hardiness:5
Soil pH:5.6-8.4
Self Pollinated
Height:66'
Width:23'
Blooms:Mid Spring-Late Spring
Open Woods Forest
Native to:
Edible Rating:PFAF Edibility RatingPFAF Edibility RatingPFAF Edibility Rating
Medicinal Rating:PFAF Medicinal RatingPFAF Medicinal RatingPFAF Medicinal Rating
Tea:Yes
Poisonous

Corylus colurna (common name: turkish hazel)

Propagation: Seed - best sown as soon as it is harvested in autumn in a cold frame[1]. Germinates in late winter or spring. Stored seed should be pre-soaked in warm water for 48 hours and then given 2 weeks warm followed by 3 - 4 months cold stratification[1]. Germinates in 1 - 6 months at 20°c[1]. When large enough to handle, prick the seedlings out into individual pots and grow them on in a cold frame or sheltered place outdoors for their first winter. Plant them out into their permanent positions in late spring or early summer[K].

Layering in autumn. Easy, it takes about 6 months[2][3].

Cultivation: An easily grown plant, it succeeds in most soils, but is in general more productive of seeds when grown on soils of moderate fertility[4][3]. It does less well in rich heavy soils or poor ones[4][5]. Does well in a loamy soil[4]. Very suitable for an alkaline soil[4], but it dislikes very acid soils[6]. Tolerates a pH in the range 5.3 to 7.3. Once established, this is a very drought resistant tree[7]. It does not produce suckers[7]. Plants are fairly wind tolerant[8][4].

A very ornamental tree[8].

Members of this genus bear transplanting well and can be easily moved even when relatively large[4].

The Turkish hazel is occasionally cultivated for its edible seed[9][10][11]. This species is also useful in hybridizing with C. avellana in order to develop superior fruiting cultivars[7].

Range: S.E. Europe to W. Asia.

Habitat: Shady mixed forests, 1000 - 1800 metres in E. Asia[12]. Found at altitudes up to 3000 metres in the Himalayas where it is found mainly on northerly aspects and in shady places[13][11].

Edibility: Seed - raw or cooked[14][15][9][16]. Rich in oil. As nice a flavour as C. avellana, the common hazel nut[13][11]. The seed ripens in mid to late autumn and will probably need to be protected from squirrels[K]. When kept in a cool place, and not shelled, the seed should store for at least 12 months[K].

An edible oil is obtained from the seed.

Medicinal: The seeds are tonic[17].

Usage: Wood - firm, durable, moderately hard. Used for furniture, turnery etc[12][11].

Pollinators: Wind

Soil: Can grow in light, medium, and heavy soils.

Wind: Tolerates strong winds

Seed Ripens: Early Fall-Mid Fall

Flower Type: Monoecious

Links

References

  1. 1.0 1.1 1.2 Bird, Alfred. Growing from Seed Volume 4. Thompson and Morgan, 1990.
  2. Sheat, Wilfrid. Propagation of Trees, Shrubs and Conifers. St Martin, 1948.
  3. 3.0 3.1 Huxley, Anthony. The New Royal Horticultural Society Dictionary of Gardening. MacMillan Press, 1992.
  4. 4.0 4.1 4.2 4.3 4.4 4.5 Bean, William. Trees and Shrubs Hardy in Great Britain. Murray, 1981.
  5. Howes, Frank. Nuts. Faber, 1948.
  6. Clapham, Arthur and Tom Tootin, Edmund Warburg. Flora of the British Isles. Cambridge University Press, 1962.
  7. 7.0 7.1 7.2 Facciola, Stephen. Cornucopia - A Source Book of Edible Plants. Kampong Publications, 1990.
  8. 8.0 8.1 Chittendon, Fred. RHS Dictionary of Plants. Oxford University Press, 1951.
  9. 9.0 9.1 Uphof, Johannes. Dictionary of Economic Plants. Weinheim, 1959.
  10. Usher, George. A Dictionary of Plants Used by Man. Constable, 1974.
  11. 11.0 11.1 11.2 11.3 Gupta, Basant. Forest Flora of Chakrata, Dehra Dun and Saharanpur. Forest Research Institute Press, 1945.
  12. 12.0 12.1 Komarov, Vladimir. Flora of the USSR. Gantner Verlag, 1968.
  13. 13.0 13.1 Gamble, James. A Manual of Indian Timbers. Bishen Singh Mahendra Pal Singh, 1972.
  14. Hedrick, Ulysses. Sturtevant's Edible Plants of the World. Dover Publications, 1972.
  15. Douglas, James. Alternative Foods.
  16. Tanaka, Tyōzaburō. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing, 1976.
  17. Chopra, R. Glossary of Indian Medicinal Plants. Council of Scientific and Industrial Research, New Delhi, 1986.