Turkish hazelnut

Leaves of Turkish hazelnut.

Turkish hazelnut is an excellent hardy tree for lawns, street plantings, and urban conditions. Its heavy-textured, dark green foliage is free of insect and disease. This tree is also pH adaptable and tolerant of heat, cold, and drought once it is established. Aside from its outstanding cultural tolerance, Turkish hazelnut yields attractive male catkins in early spring and striking beaked fruits.

Botanical name:

Corylus colurna

All Common Names:

Turkish hazelnut, Turkish hazel, Turkish filbert

Family (English):

Birch

Family (Botanic):

Betulaceae

Planting Site:

  • Residential and parks,
  • City parkway,
  • Wide median

Tree or Plant Type:

  • Tree

Foliage:

  • Deciduous (seasonally loses leaves)

Native Locale:

  • Non-native

Landscape Uses:

  • Parkway/street,
  • Shade tree,
  • Specimen

Size Range:

  • Large tree (more than 40 feet)

Mature Height:

40-50 feet

Mature Width:

15-35 feet

Light Exposure:

  • Full sun (6 hrs direct light daily),
  • Partial sun/shade (4-6 hrs light daily)

Hardiness Zones:

  • Zone 4,
  • Zone 5 (Chicago),
  • Zone 6,
  • Zone 7

Soil Preference:

  • Moist, well-drained soil

Acid Soils:

  • Tolerant

Alkaline Soils:

  • Tolerant

Salt Spray:

  • Intolerant

Soil Salt:

  • Intolerant

Drought Conditions:

  • Tolerant

Poor Drainage:

  • Moderately Tolerant

Planting Considerations:

  • May be difficult to find in nurseries

Ornamental Interest:

  • Edible fruit,
  • Attractive bark

Season of Interest:

  • Early fall

Flower Color & Fragrance:

  • Inconspicuous

Shape or Form:

  • Oval,
  • Pyramidal

Growth Rate:

  • Moderate

Transplants Well:

  • No

Wildlife:

  • Small mammals

More Information:

Tree & Plant Care

Not common in the nursery trade.
Tree can sucker at the base, so sucker removal may become necessary.
Tolerant of heat, cold, and drought once established; pH adaptable and does well in urban conditions.

Disease, pests and problems

No serious pests.

Native geographic location and habitat

Native to Europe and Asia.

Bark color and texture 

Bark is light brown to gray, becoming flaky with age.

Leaf or needle arrangement, size, shape, and texture

Simple, alternate leaves with a jagged edge;  heavy-textured and dark green in summer; 2 to 6 inches long.
Fall color is a mild yellow.

Flower arrangement, shape, and size

Relatively inconspicuous; tiny male flowers in hanging catkins; tiny, pink females.

Fruit, cone, nut, and seed descriptions

Edible hazelnuts (filberts)  enclosed in a frilly husk.

Location of Corylus colurna (Turkish hazelnut) at the Arboretum