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Scientific Name:
Eutrochium purpureum
Pronunciation:
yoo-TRO-kee-um pur-PUR-ee-um
Common Name:
Joe Pye weed
Family Name:
Asteraceae
Plant Type:
Herbaceous perennial
Key ID Features:
Stems erect, dark purple; leaves ovate-lanceolate, serrate, bright green, whorled at nodes, about 10cm long; inflorescence is large pinkish panicle; achenes feathery for wind dispersal.

Habit:
Spreading, Stiffly upright
Form:
Oval - vertical
Texture:
Medium - coarse
Mature Height:
1.3 - 2.0m
Mature Spread:
0.6 - 1.0m
Growth Rate:
Fast
Origin:
Canada - eastern, U.S. - northeast
Hardiness Rating:
Zone 4: (-34 to -29 °C)
Exposure:
Full sun
Soil/Growing Medium:
Alkaline, Rocky or gravelly or dry, Well-drained
Water Use:
Moderate, Low
Landscape Uses:
Attract butterflies, Cut flower or foliage, Fall interest, Group or mass planting, Perennial border, Waterside planting, Wildlife food, Woodland margin
Additional Info:
Google. Very similar to to E. maculatum.

Leaf Morphology:
Form:
Simple
Arrangement:
Whorled
Texture/Venation:
Soft flexible
Surfaces:
Pubescent
Colour in Fall:
Green
Shapes:
Lanceolate, Ovate
Apices:
Acuminate
Bases:
Cuneate
Margins:
Serrate

Inflorescence Type:
Head (capitulum), Panicle-like
Flower Morphology:
Flowers perfect
Corolla Shape:
Ligulate
Ovary Position:
Inferior
Colour (petals):
Showy, Violet, Pink
Flower Scent:
Sweet
Flower Time at Peak:
Aug, Sep, Oct

Fruit Type:
Cypsela (achene + calyx)
Fruit Colour:
Brown
Fruiting Time:
Sep, Oct
Additional Info:
Remove fruit before seeds mature to prevent unwanted spread.

Bark Morphology:
Smooth
Bark or Stem Colour:
Red
Organ Modifications:
Rhizomes
Propagation:
Seed, Division - below ground parts
Pest Susceptibility:
Mildew, Rust (Pest resistant, Deer resistant)

Course(s):
  • HORT 1155
Location(s):
  • (BUG)  BUG garden
  • (GAZ)  GAZebo
  • (GAZN)  GAZebo North : cv. Baby Joe
  • (WLG)  WoodLand Garden
Location Map