Common Name: Trazel

General Information

Corylus × colurnoides is a deciduous tree
The plant can be harvested for its edible seed. It is sometimes cultivated as a nut crop.

Known Hazards

None known

Botanical References

,

Range

A hybrid of cultivation, Corylus avellana x Corylus colurna.

Habitat

Not known in the wild.

Properties

Edibility Rating
Habit	Deciduous Tree
Height	0.00 m
Pollinators	Wind
Cultivation Status	Cultivated, Ornamental

Cultivation Details

An easily grown plant, it succeeds in most soils, but is in general more productive of seeds when grown on soils of moderate fertility[, ]. It does less well in rich heavy soils or poor ones[, ]. Does well in a loamy soil[]. Very suitable for an alkaline soil[], but it dislikes very acid soils[]. Plants are fairly wind tolerant[, ].
A hybrid of garden origin, it combines the non-suckering, winter hardiness and vigorous growth of Corylus colurna with the free-falling, early bearing and large nut size of Corylus avellana[]. There are some named varieties, selected for their edible seeds[, ].
Members of this genus bear transplanting well and can be easily moved even when relatively large[].

Edible Uses

Seed - raw or cooked[]. Very tasty[]. The seed makes an excellent dessert nut, tasting just like the cob and filbert[, ]. It can also be dried and ground into a powder then used in making nut milks, bread etc[].
The seed ripens in mid to late autumn and will probably need to be protected from squirrels[]. When kept in a cool place, and not shelled, the seed should store for at least 12 months[].

An edible oil is obtained from the seed.

Medicinal

None known

Other Uses

None known

Propagation

Seed - best sown as soon as it is harvested in autumn in a cold frame[]. 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[]. Germinates in 1 - 6 months at 20°c[]. 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[]. This species is a hybrid and will not breed true from seed.
Layering in autumn. Easy, it takes about 6 months[, ].