Hydrangea paniculata ‘Grandiflora’

synonyms: H. p. ‘PG’, ‘PeeGee’, ‘Minazuki’

Introduced from Japan by Philip Franz von Siebold in 1862.

H. paniculata Grandiflora AA

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)

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H. paniculata Grandiflora floret AA

Ray florets: 4 sepals, rounded, entire, slightly overlapping,
30mm diam.


Zones: 3 to 9
Size: Large (to 2.5m).


H. paniculata Grandiflora leaf B

Leaves: Light green with central vein red on back, 55mm l x 35mm w.