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Trumpetweed (Eutrochium fistulosum (Barratt) E.E. Lamont)

Also known as hollow Joe-pye weed, hollow Joe Pye weed, purple thoroughwort.

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A tall perennial of moist sites, native to the eastern and southeastern U.S; the tallest Eutrochium.

Range - Expand

Native or Not Present

This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.

Similar Plants

thumbnail of Coastal Plain Joe Pye Weed
Coastal Plain Joe Pye Weed (Eutrochium dubium)
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thumbnail of Sweetscented Joe Pye Weed
Sweetscented Joe Pye Weed (Eutrochium purpureum)
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thumbnail of Spotted Joe Pye Weed
Spotted Joe Pye Weed (Eutrochium maculatum)
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Generally found in wet, partly wooded areas in fertile soils. Found in floodplains, swamps, wet thickets, rocky streambanks, and low areas along roads and railroads. In the west of its range, also found in wet sand prairies. Found on soils rich in organic matter and nutrients, with textures ranging from loamy to sandy and gravely, but usually not clayey. Found in moist conditions, and tolerates some temporary flooding. Growth is best in sheltered ravines where plants are protected from strong winds that can cause this tall, hollow-stemmed plant to fall over.

Requires periodic disturbance to maintain the open conditions it prefers. Adapts readily to anthropogenic habitats and can be found in somewhat degraded habitats.

Prefers habitats slightly drier and more shaded than E. maculatum or E. dubium, but sunnier and wetter than E. purpureum.


Occasionally used in landscaping, although less commonly than other Eutrochium sp. due to its large size. However it can sometimes be valued specifically for its large size, and it is also valued for its showy flowers, whorled leaves, and attracting butterflies. It is generally easy to grow in moist, rich conditions, but it has a tendency to flop over in gardens, especially when it is not supported by other vegetation.

Some cultivars of other Eutrochium sp., or ones of hybrid origin, are mislabeled as this species.

This species can be used in ecological restoration projects; it is especially well-suited to riparian areas and other wet sites where the forest canopy has been removed.

This species is closely related to the four other Eutrochium species, all of which overlap with it in range somewhere. It has been documented hybridizing with E. purpureum in the wild, and it may hybridize with all others as well.

Eutrochium fistulosum (Hollow Joe-Pye Weed) | Illinois Wildflowers (About This Site)

Eutrochium fistulosum (Trumpetweed) | USDA PLANTS Database (About This Site)

Eutrochium fistulosum | Go Botany (About This Site)

Eutrochium fistulosum (Joe-Pyeweed) | Missouri Botanical Garden Plant Finder (About This Site)

Eutrochium fistulosum | Biota of North America Project (BONAP) (About This Site)

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