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CORYLUS colurna

Image of Corylus colurna

Jesse Saylor

Family

Betulaceae

Botanical Name

CORYLUS colurna

Plant Common Name

Turkish Filbert, Turkish Hazelnut

Special Notice

This entry has yet to be reviewed and approved by L2G editors.

General Description

Attractive leaves, exfoliating bark and curious-looking fruits that contain an edible nut are highlights of the Turkish filbert tree. Native to southeastern Europe and western Asia, it has a pyramid-like habit initially, but as it matures attains an upright oval silhouette. The brown bark chips and flakes off in small bits, adding to the ornamental interest, especially from fall to spring.

In very late winter, branches bear long pendent clusters of male flowers, called catkins. Small, easy-to-overlook female flowers occur up against the branch. By late spring, the tree is densely covered in rounded leaves with jagged edges and a pointy tip. They're very dark lustrous green and don’t change color in autumn before falling off. Pollinated female blossoms become a light green fruit that looks like a fat, mutant spider or coarse, awkward pompon. Modified leaves called bracts makes the fruits look this way. Each fruit dries to sandy brown and if torn open, reveals a small edible seed nut by very late summer.

Grow Turkish filbert in a full or partial sun setting in any fertile soil with good drainage, including alkaline ground. Once established, the tree demonstrates excellent drought tolerance. While the tree does yield conversation-inducing fruits and edible nuts, Turkish filbert is underappreciated and overlooked as a handsome shade, park or street tree.

Characteristics

  • AHS Heat Zone

    7 - 4

  • USDA Hardiness Zone

    5 - 7

  • Sunset Zone

    2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20

  • Plant Type

    Tree

  • Sun Exposure

    Full Sun

  • Height

    45'-70' / 13.7m - 21.3m (50)

  • Width

    20'-35' / 6.1m - 10.7m

  • Bloom Time

    Early Spring

  • Native To

    Eastern Europe, Western Asia

Growing Conditions

  • Soil pH

    Acidic, Neutral, Alkaline

  • Soil Drainage

    Well Drained

  • Soil type

    Clay, Loam, Sand

  • Tolerances

    Drought

  • Growth Rate

    Medium

  • Water Requirements

    Drought Tolerant, Average Water

  • Habit

    Oval/Rounded

  • Seasonal Interest

    Spring, Summer, Fall, Winter

Ornamental Features

  • Flower Interest

    Insignificant

  • Flower Color

    Light Yellow, Bronze

  • Fruit Color

    Light Green, Sandy Brown

  • Foliage Color (Spring)

    Green

  • Foliage Color (Fall)

    Dark Green

  • Bark Color

    Tan, Sandy Brown, Gray

  • Fragrant Flowers

    No

  • Fragrant Fruit

    No

  • Fragrant Foliage

    No

  • Bark or Stem Fragrant

    No

  • Repeat Bloomer

    No

  • Showy Fruit

    Yes

  • Edible Fruit

    Yes

  • Showy Foliage

    Yes

  • Foliage Texture

    Medium

  • Foliage Sheen

    Glossy

  • Evergreen

    No

  • Showy Bark

    Yes

Special Characteristics

  • Bark Texture

    Exfoliating

  • Usage

    Edible, Fruit / Fruit Tree, Shade Trees, Street Trees

  • Sharp or Has Thorns

    No

  • Invasive

    No

  • Attracts

    Birds

  • Self-Sowing

    No