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Scientific Name: Hydrangea paniculata
Pronunciation: hye-DRAIN-juh puh-nick-you-LAY-tuh
Common Name: pee gee hydrangea
Family Name: Hydrangeaceae
Plant Type: Shrub - deciduous
Key ID Features: Twiggy; leaves elliptical, medium-sized in whorls of 3; some florets large white to pink 4 lobes; inflorescences large, cone-shaped, panicle-like (thryse). Winter ID: buds tiny and in whorls of 3; large, persistent conical inflorescences (if not pruned).
Course(s): HORT 1155, Level 1 Apprenticeship

Habit: Arching, Spreading, Stiffly upright, Twiggy
Form: Round, Vase
Texture: Medium - coarse
Mature Size:
Height:2 - 3m
Spread:2 - 3m
Growth Rate:Fast
Hardiness Rating: Zone 3: (-40 to -34 C)
Exposure: Filtered shade, Full sun
Soil/ Growing Medium: Well-drained
Water Use: Moderate
Landscape Uses: Accent plant, Cut flower or foliage, Dried flower or fruit, Fall interest, Group or mass planting, Mixed shrub border, Specimen plant, Tall background
Additional Info: Google. Cultivars on campus may include H. ‘Unique’ , H. 'Quick Fire' , and H. 'Pinky Winky'.
pee gee hydrangea
Leaf Morphology: Glossary
Form: Simple
Arrangement: Whorled
Texture/ Venation: Heavily veined
Colour in Fall: Green, Yellow
Leaf(let) Terms:
Shapes: Elliptic
Apices: Acute
Bases: Obtuse
Margins: Serrate

Inflorescence Type: Floriferous, Panicle-like, Thyrse
Flower Morphology:Flowers perfect
Number of Petals:5
Corolla Shape:Rotate/stellate
Ovary Position:Inferior
Colour (petals): Showy, White, Pink
Flower Scent: None
Flower Time at Peak: Jul, Aug, Sep

Fruit Type: Capsule
Fruit Colour: Brown
Fruiting Time: Oct, Nov, Dec
Additional Info: Not showy

Bark Morphology: Exfoliating, Multi-stem trunk
Bark or Stem Colour: Grey, Tan
Leaf Scar Shape:V-shaped

Propagation: Seed, Softwood cuttings, Hardwood cuttings
Pest Susceptibility: Abiotic disorder, Fungal leaf spot, Mildew, Mold, Nematodes, ( Deer resistant, Rabbit resistant )
(GAZ) GAZebo
(GAZW) GAZebo West
(NRY) NuRserY : cv. Kyushu
(ONE) Overpass North side East : 662
(PPL) Pine PLanting : cv. Little Lamb
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