American Yellowwood (Cladrastis kentuckea or Cladrastis lutea)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Tree

American Yellowwood
Cladrastis kentuckea or Cladrastis lutea

American Yellowwood form
American Yellowwood form
 
Features
Clusters of fragrant, white, pea-type flowers in late spring; yellow fall color; smooth, light gray bark. 
 
Culture
Full sun; moist, well-drained soil; prefers alkaline soil, tolerates acid soil. 
 
Cultivars
 
 
Mature Height
30-50 Feet
 
Size
Medium
 
 
Mature Form
Rounded, oval or broad rounded 
 
Native To:
United States 
 
USDA Hardiness Zone
5 - 8 
 
Soil Conditions
Moist, Well-Drained
 
 
Tolerance
Alkaline Soil
 
 
Exposure/Light Requirements
Full Sun
 
 
Uses
Shade
Specimen
 
 
Foliage Color
Green
 
 
Fall Foliage Color
Yellow
 
 
Pests and Problems
 
Additional Notes
This species tends to flower heavily on alternate years. Tree should be pruned in summer as winter or spring pruning can lead to excessive sap loss.

 

 
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