Plant index
Sweet Joe-Pye Weed

Sweet Joe-Pye Weed

Eutrochium purpureum

Specimen collection
Category
Wildflower
Status
Native
Family
Asteraceae
Abundance
Common

Description

A tall, commanding native wildflower of moist meadows and pond margins, reaching 1–2 meters tall. Large domed clusters of dusty pink-purple flowers attract a spectacular diversity of butterflies and bees in late summer. The whorled leaves emit a vanilla-like scent when crushed. The plant is named for a Mohican healer named Joe Pye who reportedly used it for treating typhus fever.

Identification tips

  • 1Very tall (1–2 m) with large domed flower clusters of dusty pink-purple
  • 2Leaves in whorls of 3–5 around the stem, lance-shaped with serrated edges
  • 3Stem green or lightly purple-speckled (not solid dark purple like spotted joe-pye weed)
  • 4Crushed leaves have a vanilla-like fragrance
  • 5Found in moist to wet open habitats — meadow edges, pond margins

Specimen & preservation notes

Collect a section of stem showing a leaf whorl plus the terminal flower cluster. The full plant is too tall to press whole — cut a 40–50 cm section from the top. Press flower clusters between extra layers of blotting paper as they hold moisture. Note the vanilla scent on the label.

Collection calendar

WkAprMayJunJulAugSepOctNov
1
2
3
4
CollectibleCurrent weekNot collectible
Jul Wk 4Flower buds forming
Aug Wk 1,2,3Peak bloom — large domed pink clusters

Season check

Guide window is wider than observed records.

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Guide collection windowObserved flowering

Flowering records: 2 iNaturalist observations, Massachusetts · Nearby: 12 observations within 25 km