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Hydrangea paniculata ‘Grandiflora’

Peegee hydrangea

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassRosidaeRoses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
OrderRosalesRose family and eight others
FamilyHydrangeaceaeHydrangea family
GenusHydrangeaFrom Greek hydro, “water,” and angeion, “vessel”
SpeciespaniculataWith the flowers in panicles

About plant names...

Panicled hydrangea is native to Japan and China. It is not found in the wild in North America. They are "panicled" because their flower clusters are more cone-shaped (like panicles) vs. the ball-shaped flowerheads of other hydrangeas. Flower color in some hydrangeas is influenced by soil pH, but this is not true for this one. Hydrangea paniculata 'Grandiflora' is a cultivated variety.

Identification: These shrubs reach heights of 15-25′ (4.6-7.6 m), and somewhat less in diameter, often taking the form of a small tree. Leaves are opposite, roughly oval shaped, with serrated edges, 2-5″ (5-12 cm) long. Blooms are white or pink, more cone-shaped than ball-shaped, in clusters up to 10″ (25 cm) long and 8″ (20 cm) around. They bloom from July to September. See this Hydrangea comparison table.

Online References:

The Missouri Botanical Garden



in Paghat's Garden

The University of Connecticut Plant Database

Hydrangea paniculata (peegee hydrangea)

9/7/2010 · Tower Hill Botanic Garden, Boylston, Mass­a­chu­setts

Hydrangea paniculata cv. Grandiflora


Hydrangea paniculata ‘Grandiflora’ description by Thomas H. Kent, last updated 25 May 2020.

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Hydrangea paniculata (peegee hydrangea)

9/7/2010 · Tower Hill Botanic Garden, Boylston, Mass­a­chu­setts

Range: Zones 3-8:

About this map...