Family: Asteraceae

Scientific Name: Eupatorium maculatum Gateway

Common Name: Eupatorium Gateway, Gateway Joe Pye Weed

DescriptionA tall growing perennial for the moist partial shaded areas of the yard.
Plant TypeAll Plants, Perennials Hardy
Hardiness Zone3-9
SunlightI grow this in an area that receives a third day of full sun and they are very content in this spot. It is list as a full sun to light shade plant.
MoistureTolerates average but prefers moist conditions. The plants I grow need additional water during dry spells or the top parts of the plant will wilt.
Soil & Siteaverage to moist
TemperatureMay have trouble handling the heat of warmer climates
FlowersThe dark pink (sometimes listed as red) flowers are complex. 5-7 small flowers make up a flower head, while 5 or more flower heads make up a compound inflorescence. Flowers are very fluffy and cloud like in appearance. Starts blooming end of July to early August
Leaveslance-shaped leaves, coarsely serrated, up to 10" and occur in whorls of 3-5
Stemsstout stems, mottled toward the base with purple speckles, becomes pure red towards the top.
Dimensionsover 7' tall, will spread to form a colony, I have had a few seedlings pop up close to the colony
MaintenanceNeed good lopping shears to remove the stout stems in the fall.
Propagationdivision
Native SiteThe spotted Joe-pye weeds are native to North America.
Misc FactsEupatorium from the Greek name Mithridates Eupator, King of Pontus about 115BC who is said to have discovered an antidote to a commonly used poison in one of the species. The name Joe pye came from a Indian medicine Man.
Notes & Reference#36-Encyclopedia of Perennials (Christopher Woods), #145-Plant Lives, (Sue Eland) www.plantlives.com
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