University of Illinois Extension

Hort Answers

Shrub

Oakleaf Hydrangea
Hydrangea quercifolia

Oakleaf Hydrangea flower
Oakleaf Hydrangea flower
 
Features
Large pyramidal clusters of white flowers in summer; flower color changes to pinkish white in late summer and light brown in autumn; summer foliage has an attractive, oak-like appearance; autumn color is russet-red. 
 
Culture
Full sun to shade; moist, well-drained soil is preferred; acid soil is preferred, but alkaline soil is tolerated. 
 
Cultivars
  • 'Alice' - Large, showy flowers change from white to pink as they age, up to 12 feet tall.
  • 'Pee Wee' - 2-3 feet tall.
  • 'Snow Queen' - Larger and fuller flower clusters, autumn color is red-bronze.
 
 
Mature Height
3-6 Feet
 
Size
Small
 
 
Mature Width
3-6 Feet
 
Mature Form
Upright to irregular; potential to sucker and form colonies 
 
Native To:
United States  
 
USDA Hardiness Zone
5 - 9 
 
Soil Conditions
Moist, Well-Drained
 
 
Tolerance
Alkaline Soil
Salt
 
 
Exposure/Light Requirements
Full Shade
Full Sun
Partial Sun/Shade
 
 
Uses
Border
Naturalizing
Specimen
 
 
Foliage Color
Green
 
 
Fall Foliage Color
Brown
Red
 
 
Pests and Problems
 
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