TREES & plants

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): 
Family (Botanic): 
Tree or Plant Type: 
  • Tree
  • Deciduous (seasonally loses leaves)
Native Locale: 
  • Non-native
Planting Site: 
  • Residential and parks, 
  • City parkway, 
  • Wide median
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
  • 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.

Corylus colurna or Turkish hazelnut