Hydrangea paniculata ‘Grandiflora’
synonyms: H. p. ‘PG’, ‘PeeGee’, ‘Minazuki’
Introduced from Japan by Philip Franz von Siebold in 1862.
Hydrangea paniculata ‘Grandiflora’ is a large shrub with many firm stems and branches. A severe pruning in spring will promote a large crop of flowers.
Inflorescence: Well-rounded panicles 110 x 120mm across, comprising mostly sterile flowers.
Colour in neutral soil: White
Colour in acidic soil with Al present: White (no change)