European Filbert (Corylus avellana)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Shrub

European Filbert
Corylus avellana

European Filbert, stems of the cultivar 'Contorta'
European Filbert, stems of the cultivar 'Contorta'
 
Features
Hanging yellow brown catkins (male flowers) in early spring; crisp green foliage in summer; edible nuts in distinctive, notched husks in autumn.  
 
Culture
Full sun; prefers a moist, well-drained soil; tolerates alkaline soil. 
 
Cultivars
  • 'Contorta' - Distinctive curled and twisted stems, 8-10 feet tall, this cultivar is often sold under the name Harry Lauder's Walkingstick.
 
 
Mature Height
10-15 Feet
 
Size
Medium
Large
 
 
Mature Width
10-12 Feet
 
Mature Form
Rounded 
 
Native To:
Europe 
 
USDA Hardiness Zone
5 - 8 
 
Soil Conditions
Moist, Well-Drained
 
 
Tolerance
Alkaline Soil
Wind
 
 
Exposure/Light Requirements
Full Sun
 
 
Uses
Specimen
 
 
Foliage Color
Green
 
 
Fall Foliage Color
Green
Yellow
 
 
Pests and Problems

Environmental Damage

Fungal Disease


Additional pests and problems that may affect this plant:

Occasional caterpillars and leaf spots, but seldom serious. This shrub tends to become crowded due to suckers; thin out suckers to keep plant attractive.
 
Additional Notes

 

 
Related Resources
Home, Yard & Garden Pest Guide
Illinois Commercial Landscape and Turfgrass Pest Management Handbook
U of IL - Distance Diagnosis through Digital Imaging
U of IL - Plant Clinic