Scientific Name
Eutrochium maculatum (L.) E.E.Lamont
Common Name(s)
Spotted Joe-Pye Weed
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
Scientific Classification
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Eupatorieae
Genus: Eutrochium
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, sometimes green with purple spots. In late summer, one plant can produce numerous rose-purple flower heads, each head 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
Sweet Joe Pye Weed is happiest with full sun to part shade in moist to wet soils. It prefers that the soil does not dry out, which is why clay works well for Joe Pye. It has no serious insect or disease problems.
Sweet Joe Pye Weed just 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, then 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.
Origin
This species is native to North America.
Links
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