Turkish Hazelnut

Corylus colurna

Native to:
Albania, Bulgaria, Greece, Iran, North Caucasus, NW. Balkan Pen., Romania, Transcaucasus, Türkiye, Türkiye-in-Europe

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Betulaceae
Genus:
Corylus
Species:
Corylus colurna
USDA Symbol:
COCO30

Growth Characteristics

Height:
1500 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
feb,mar,apr
Bloom Colors:
yellow, green

Keystone Species Ranking

Caterpillar Keystone:
★★★★★ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
birds, squirrels, small mammals
Salt Tolerant:
Yes
Fall Color:
yellow

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
good drainage required
Moisture:
dry to moderate
Notes:
prefers calcareous soils in native range

Propagation & Germination

Stratification:
Warm then cold/moist stratification (double dormancy) — 150–180 days
Germination Time:
14–60 days
Notes:
Double dormancy requires warm stratification (60-90 days) followed by cold stratification (90-120 days). Germination can be erratic over two seasons.

The above propagation data sourced from Claude AI