Amur Corktree (Phellodendron amurense)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Tree

Amur Corktree
Phellodendron amurense

Amur Corktree form
Amur Corktree form
 
Features
Broad habit is interesting in all seasons; deeply furrowed bark (becomes more prominent as the tree ages). 
 
Culture
Full sun; moist, well drained soils, but tolerates dryness; tolerant of alkaline sites. 
 
Cultivars
  • 'Macho'-male cultivar
  • Shademaster:R: male cultivar
 
 
Mature Height
25-40 Feet
 
Size
Medium
 
 
Mature Form
Broad spreading, with a short trunk (crown of the tree is usually much wider than it is high). 
 
Native To:
China 
 
USDA Hardiness Zone
4 - 7 
 
Soil Conditions
Dry
Moist, Well-Drained
 
 
Tolerance
Alkaline Soil
Dry Sites
Wind
 
 
Exposure/Light Requirements
Full Sun
 
 
Uses
Shade
 
 
Foliage Color
Green
 
 
Fall Foliage Color
Green
Yellow
 
 
Pests and Problems

Environmental Damage

Fungal Disease


Additional pests and problems that may affect this plant:

Female trees will produce fruit and self seed. In some areas of the country this has caused the tree to become a pest.
 
Additional Notes
This tree has a wide spreading root system. This, coupled with the width of the crown, keeps it from being used streetside; male and female flowers are on separate trees; female trees produce small fruit that can be a minor litter problem.

 

 
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