University of Illinois Extension
University of Illinois Extension - Selecting Shrubs for Your Home
http://www.urbanext.uiuc.edu/shrubselector
Buttonbush
Cephalanthus occidentalis
flowers of buttonbush
Size:

Small
Size: medium
Medium

Large
Exposure/ Light Requirements:
Full Shade not required.
Full Shade
Full Sun required.
Full Sun
Partial Sun/Shade not required.
Partial Sun/Shade
Pests and Problems:

Environmental Damage


Hardiness Zone: 5 - 11 
Mature Height: 6-12 Feet
Mature Width: 6-15 Feet
Features: Tiny, creamy white flowers packed closely in a ball-like structure, in mid-summer; fragrant and attractive to bees; fruit also in ball-like structure, green with a red tint, turning brown late in the season.
Culture: Full sun; must have moist soils and can grow in wet sites (even along the water's edge); tolerates alkaline soil.
Mature Form: Broad rounded to rounded, but somewhat open.
Native To: United States (and Illinois)
Soil Conditions:
Dry
Soil condition: Moist, Well-DrainedMoist, Well-Drained
Soil condition: WetWet
Tolerance:
Tolerance: Alkaline SoilAlkaline Soil
Dry Sites
Salt
Tolerance: Soil CompactionSoil Compaction
Tolerance: Wet SitesWet Sites
Tolerance: WindWind
Uses:
Barrier
Use for: Border.Border
Foundation
Hedge
Massing
Use for: Naturalizing.Naturalizing
Screen
Specimen
Foliage Color: Green
 
Fall Foliage Color: Green
 
Additional Notes: In the north, the plant tends to be shorter (6 feet), than when grown in the south.