Photo by Melody

PlantFiles: Spotted Joe Pye Weed
Eutrochium maculatum

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Eutrochium (yoo-TRO-kee-um) (Info)
Species: maculatum (mak-yuh-LAH-tum) (Info)

Synonym:Eupatorium maculatum
Synonym:Eutrochium maculatum var. maculatum

5 vendors have this plant for sale.

12 members have or want this plant for trade.

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Ponds and Aquatics

4-6 ft. (1.2-1.8 m)

36-48 in. (90-120 cm)

USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)

Sun Exposure:
Full Sun
Sun to Partial Shade


Bloom Color:
Fuchsia (Red-Purple)
Scarlet (Dark Red)

Bloom Time:
Mid Summer
Late Summer/Early Fall


Other details:
This plant is attractive to bees, butterflies and/or birds
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens
Flowers are good for cutting

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; direct sow after last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

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There are a total of 12 photos.
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1 positive
1 neutral
No negatives

Gardeners' Notes:

Positive gsteinbe On Sep 25, 2008, gsteinbe from Trenton, NJ wrote:

To be honest, I'm not sure if what I have is Eupatorium maculatum or Eupatorium purpureum. From the photos here, I would guess the former. Whichever they are, they've been a positive experience. I like big plants, and these plants are big and not shy. This year, they flopped over a bit much, but they've grown about 5-6 feet tall in mostly sun, mostly moist soil (though not boggy). The flowers are pretty and understated, not flashy in color but noticeable -- unusual lavender or grayish purple, fuzzy umbels. They draw butterflies, other bugs, and birds, blooming in high summer for me in zone 6. They make *tons* of seeds, and they self-sow if allowed. So, overall, they're not a refined, spectacular kind of plant, but they're dependable, hardy, distinctive, fertile, and native. I grew mine from seed, and they weren't hard to start. Once planted outdoors, they grew quickly and bloomed prolifically after one winter.

Neutral Todd_Boland On Dec 15, 2004, Todd_Boland from St. John's, NL (Zone 5b) wrote:

This is a bold plant for a moist site or near the edge of a garden pond. Plants may reach 6 feet. The leaves are in whorls of 4 or 5 and are deep green and very veined. In late summer plants produce large, flat-topped pink to purple mauve flowers that are very attractive to butterflies and bees. Full sun will produce the best flowering.


This plant has been said to grow in the following regions:

Grayslake, Illinois
Westmont, Illinois
Linwood, Michigan
Beatrice, Nebraska
Trenton, New Jersey
Elephant Butte, New Mexico
Panama, New York
Elizabeth City, North Carolina
Leesburg, Virginia
Liberty, West Virginia

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