University of Illinois Extension
University of Illinois Extension - Selecting Shrubs for Your Home
http://www.urbanext.uiuc.edu/shrubselector
Panicle Hydrangea
Hydrangea paniculata
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Panicle Hydrangea form
Size:

Small
Size: medium
Medium
Size: large
Large
Exposure/ Light Requirements:
Full Shade not required.
Full Shade
Full Sun required.
Full Sun
Partial Sun/Shade required.
Partial Sun/Shade
Hardiness Zone: 4 - 8 
Mature Height: 10-15 Feet
Mature Width: 10-15 Feet
Features: Large pyramidal clusters of white flowers in summer; flower color changes to pinkish white in late summer and light brown in autumn.
Culture: Full sun to partial shade; moist, well-drained soil is preferred.
Cultivars:
  • 'Grandiflora' - Large (12-18 inch) clusters of white flowers (often sold as PeeGee hydrangea).
  • 'Kyushu' - Flowers heavily, even at an early age.
  • 'Pink Diamond' - Large clusters (12 inch) of white flowers turning to a good pink.
  • 'Tardiva' - Flowers late (September).
  • 'Unique' - Large (16 inch long) pure white flower clusters.
  • 'Zwijnenburg' ('Limelight'™) - Lime green flowers change to white, then pink.
Mature Form: Upright to irregular
Native To: Japan
Soil Conditions:
Dry
Soil condition: Moist, Well-DrainedMoist, Well-Drained
Wet
Tolerance:
Alkaline Soil
Tolerance: Dry SitesDry Sites
Tolerance: SaltSalt
Soil Compaction
Wet Sites
Tolerance: WindWind
Uses:
Barrier
Use for: Border.Border
Foundation
Hedge
Massing
Naturalizing
Screen
Use for: Specimen.Specimen
Foliage Color: Green
 
Fall Foliage Color: Green
 
Additional Notes: This species blooms on current year's growth.