Plant Common Name
Hollow-Stemmed Joe-Pye weed, Trumpetweed
Beautiful branched clusters of purplish rose flowers rise from this stately eastern North American native perennial in summer and fall. Hollow-stemmed Joe-Pye weed naturally inhabits moist meadows, thickets and roadside ditches but grows equally well in regular garden loam. Its colorful flowers and bold look make it a favorite cultivated native in large-scale perennial gardens and native gardens alike.
Its smooth, upright stems are bright purplish red and have a hollow interior between the points when the leaves join. Eupatorium fistulosum is often confused with its similar relative, Eupatorium purpureum but its stems are solid throughout and greener. Whorls of six coarsely textured, lightly serrated, deep green leaves line the stems. Large branched clusters of flowers appear from midsummer to early fall, depending on geographic location. Each flower is purplish dusty rose and fuzzy. Lots of pollinators visit the flowers, especially large butterflies like swallowtails and monarchs. The fluffy white seeds that follow mature by late fall.
Plant hollow-stemmed Joe-Pye weed in full to partial sun and any fertile, moist garden soil. It will grow in a wide range of soil types but is most often found growing in sandy loam that’s slightly acid to neutral in pH. If subjected to extended drought, its foliage will scorch. The tall stems may need staking, especially specimens grown in partial sun. Over time the clumps will spread, so it’s wise to divide garden grown clumps regularly to keep the manageable.
Tall perennials such as this are great when planted as focal backdrops in a large border planting. Naturalistic wetland gardens are also ideal. This Joe-Pye weed pairs beautifully with tall ornamental grasses and other summer and fall-flowering composites. Its dried stems offer winter interest and should be left up until late winter or early spring.
AHS Heat Zone
8 - 2
USDA Hardiness Zone
3 - 8
Full Sun, Partial Sun, Partial Shade
4'-10' / 1.2m - 3.0m (5)
2'-4' / 0.6m - 1.2m
Summer, Late Summer, Early Fall, Fall
Northeastern United States, Mid-Atlantic United States, Southeastern United States, Canada
Bog Garden, Cutflower, Feature Plant, Mixed Border, Wildflower
Sharp or Has Thorns