Scientific Name
Eutrochium maculatum (L.) E.E.Lamont
Synonym(s)
Eupatoriadelphus maculatus var. maculatus, Eupatorium maculatum var. maculatum, Eupatorium purpureum var. maculatum, Eupatorium purpureum subsp. maculatum, Eupatorium trifoliatum var. maculatum, Eutrochium maculatum var. maculatum
Common Name(s)
Spotted Joe-Pye Weed
Scientific Classification
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Eupatorieae
Genus: Eutrochium
Origin
Eutrochium maculatum is native to North America.
Flower
Color: Rose-purple
Bloom Time: Late summer
Description
Eutrochium maculatum is an herbaceous perennial that grows up to 6.6 feet (2 m) tall. Stems are sometimes completely purple, occasionally green with purple spots.
In late summer, one plant can produce numerous rose-purple flower heads, each with 8-22 disc flowers but no ray flowers.
The specific epithet "maculatum," meaning "spotted," refers to the purple spots on the stem.
How to Grow and Care for Eutrochium maculatum
Sweet Joe Pye Weed is happiest with full sun to partial shade in moist to wet soils. It prefers that the soil not dry out, which is why clay works well for Joe Pye. It has no serious insect or disease problems.
Sweet Joe Pye Weed isn't a fussy or difficult plant to grow. If you do not want Sweet Joe Pye Weed to spread hither and yon, then cut the seed heads off.
If you are propagating by seed in the fall, plant thickly as germination is usually low. Propagation is best from softwood cuttings taken in late spring or by division in fall, as they go dormant, or in the spring, just as shoots first appear.
See more at Growing and Using Sweet Joe Pye Weed.
Links
- Back to genus Eutrochium
- Plantpedia: Browse flowering plants by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, or Origin
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