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Eutrochium dubium

coastal plain Joe-Pye weed add to wishlist

Plant types and subtypes: Perennials

Light Requirements: sun, part-sun

Water Use: medium, high

Soil Moisture: moist, wet

Soil Description: acid, average, poor, sand

Height: 2'-5'

Bloom Time: July, August, September, October

Bloom Color: white, purple, pink, lavender

Leaf Color: green

Hardiness Zone: 5, 6, 7, 8

Additional Tags: attracts bees, attracts birds, attracts butterflies, bog plant, clumping, colonizing, pond margin plant, stream margin plant, swamp plant

Flowers of Eutrochium dubium (coastal plain Joe-Pye weed)
  • Flowers of Eutrochium dubium (coastal plain Joe-Pye weed)
  • Flowers of Eutrochium dubium (coastal plain Joe-Pye weed)
  • Flowers of  Eutrochium dubium (coastal plain Joe-Pye weed)
  • Flowers of  Eutrochium dubium (coastal plain Joe-Pye weed)

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Eutrochium dubium

Also known as:

coastal plain Joe-Pye weed


eastern Joe-Pye weed


Joe-Pye weed


Joe-Pye thoroughwort


little Joe


Joe Pye weed

Scientific Synonyms:

Eupatorium dubium, Eupatoriadelphus dubius


Eutrochium dubium grows 2 to 5 feet tall. It may be distinguished from other species of Joe-Pye weed by its leaves, which narrow abruptly at the base, rather than taper gradually. Also, the stems bear fine purple spots and the purplish pink flower clusters are dome-shaped, rather than flat-topped as with other species.


The relatively small size of this species of Joe-Pye weed (up to 5 feet), make it well suited for garden settings. It is a moisture loving plant that will withstand occasional flooding. It thrives with "wet feet" and care should be taken to not let the soil dry out for long periods. Eutrochium dubium enjoys a long bloom period, that can begin as early as July, and extend well into October. Zones 5-8


Propagate by root division of mature clumps in spring when the first new shoots appear or in fall when the plant goes dormant. May also be propagated by softwood cuttings or from cold stratified seeds.

Additional Notes

The nectar rich flowers of coastal plain Joe-Pye weed will attract a great variety of pollinators. "Little Joe" (as it is also known) is a great plant for use around water features, where it will provide interest late into the growing season.

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:

USDA Endangered Status:

  • Threatened: ME


Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Magnoliopsida Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae Aster family
Genus Eutrochium
Species Eutrochium dubium coastal plain Joe-Pye weed