Douglasfir (Pseudotsuga menziesii)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Tree

Douglasfir
Pseudotsuga menziesii

Douglasfir form
Douglasfir form
 
Features
Evergreen needles. 
 
Culture
Full sun; moist, well drained soil; prefers soil pH neutral to slightly acid. 
 
Cultivars
 
 
Mature Height
60-75 Feet
 
Size
Large
 
 
Mature Form
Loosely pyramidal 
 
Native To:
United States 
 
USDA Hardiness Zone
4 - 6 
 
Soil Conditions
Moist, Well-Drained
 
 
Tolerance
Alkaline Soil
 
 
Exposure/Light Requirements
Full Sun
 
 
Uses
Screen
Specimen
 
 
Foliage Color
Green
 
 
Fall Foliage Color
Green
 
 
Pests and Problems

Environmental Damage

Fungal Disease

Insect Damage


Additional pests and problems that may affect this plant:

Zimmerman pine moth and cankers.
 
Additional Notes
Should not be used as a windbreak as it can be damaged by winds

 

 
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