A tall (5–7 ft) wildflower with dusty-pink flowerheads that act as butterfly magnets in late summer — among the most insect-rich nectar sources in any native garden.

§ Quick facts

SizeHeight 60–150 cm (2–5 ft)
WeightN/A
LifespanPerennial; clones can persist 50+ years
OrderCaryophyllales
FamilyPolygonaceae

§ Encyclopedia

Eutrochium maculatum, the spotted Joe Pye weed, is a North American species of flowering plant in the family Asteraceae. It is widespread through much of the United States and Canada. It is the only species of the genus Eutrochium found west of the Great Plains.

Source: Wikipedia — Eutrochium maculatum Licensed under CC BY-SA 4.0

§ Identification

Field marks. Tall plant with whorled leaves and dense purple flower clusters atop stems.

Similar species. Other Liatris species. Some non-native ornamentals.

Voice. N/A

§ Diet & behavior

Diet. N/A — photosynthesis

Behavior. Native prairie wildflower with bold purple flowers in late summer. Among the most important late-season pollinator plants.

§ Range

Northern and central US

§ Habitat

Wet meadows, stream banks, prairie potholes

§ Threats

Wet meadow loss, mowing during peak bloom, deer browsing.

§ Conservation status

According to the IUCN Red List, the spotted joe-pye weed is currently classified as Least Concern.

§ What helps

Plant native Eutrochium in moist garden corners. Maintain wet meadow buffers. Skip mowing of native flowers in August.

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§ Further reading

§ Sources cited

  • Lady Bird Johnson Wildflower Center
  • USDA Plants Database
  • iNaturalist