Sweet Mockorange (Philadelphus coronarius)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Shrub

Sweet Mockorange
Philadelphus coronarius

Sweet Mockorange form
Sweet Mockorange form
 
Features
Fragrant white flowers in spring 
 
Culture
Full sun to partial shade; moist, well-drained soils are best; tolerates alkaline soil. 
 
Cultivars
  • 'Aureus'- Yellow foliage, turning to yellow green in summer.
  • 'Variegatus' - Green leaves with a creamy white border.
 
 
Mature Height
10-12 Feet
 
Size
Medium
 
 
Mature Width
10-12 Feet
 
Mature Form
Upright, rounded, often with arching branches 
 
Native To:
Europe 
 
USDA Hardiness Zone
4 - 8 
 
Soil Conditions
Moist, Well-Drained
 
 
Tolerance
Alkaline Soil
Wind
 
 
Exposure/Light Requirements
Full Sun
Partial Sun/Shade
 
 
Uses
Border
Screen
Specimen
 
 
Foliage Color
Green
Variegated
Yellow
 
 
Fall Foliage Color
Green
 
 
Pests and Problems

Environmental Damage

Fungal Disease


Additional pests and problems that may affect this plant:

Leaf spot, powdery mildew, and aphids are possible, but seldom serious.
 
Additional Notes
Annual pruning is needed to keep the plant in good shape.

 

 
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