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Eupatorio dulce

Porte (maduro) - Charles de Mille-Isles / Wikimedia Commons - CC BY 2.0

Cobertura limitada

Eupatorio dulce

Eutrochium purpureum

Una planta perenne nativa de alto porte propia de praderas húmedas y bordes de bosque de toda la América del Norte oriental, que produce grandes racimos en cúpula de flores rosa-púrpura con aroma a vainilla a finales del verano — entre las fuentes de néctar tardías más fiables para monarcas, mariposas golondrinas, saltarinas y abejas nativas. Anteriormente clasificada como Eupatorium purpureum.

Native: 35 US states + 2 CA provinces

Climate fit: broad (83/100)

Pollinator

Focal point

Structure

Light

Full sun / Part sun

Water

Consistent moisture

Mature size

60-84" tall · 48" apart

Hardy in zones

4a-9b

very cold to frosty winters

AHS heat range

1-11

Plant range authored in AHS heat-zone terms.

Native in Illinois

Yes

Related products

Cold hardiness

Future

2050

2100

These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.

Now

Zone 6b

USDA

Published baseline for this location from 1991-2020.

Source: USDA Plant Hardiness Zone Map 2023 (1991-2020 climatology) via ArcGIS FeatureServer

Well-suited

2050

Zone 7a

Plotwright

Projected zone for this same location in 2050 (2041-2070) using SSP3-7.0 (regional rivalry).

Well-suited

In plain terms: This location is in Zone 6b today. Its hardiness profile is cold winters, and coldest nights are typically around -3°F. By 2050, the projected hardiness zone is Zone 7a based on SSP3-7.0 (regional rivalry). That is a +0.5-zone shift from Zone 6b to Zone 7a by 2050.

✓

Well-suited today and still thriving in 2050.

Heat tolerance

Future

2050

2100

Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.

Loading AHS heat-zone data for this location...

Where this plant fits

Suitable across 41 ecoregions — 40 climate-resilient through 2070 · 1 suited today. Best matches first.

Appalachian mixed mesophytic forests

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Appalachian-Blue Ridge forests

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Arizona Mountains forests

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Atlantic coastal pine barrens

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Blue Mountains forests

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Canadian Aspen forests and parklands

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Central Pacific Northwest coastal forests

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Central Tallgrass prairie

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Central-Southern Cascades Forests

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Chilean Matorral

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What it needs

Conditions

Light

Full sun / Part sun

Water

Consistent moisture

Spacing

48"

Habit

Perenne erguida formadora de matas con follaje en verticilos

Care tips

•

Sitúela en el lado húmedo — las hojas se quemarán y se encogerán en los bordes si el suelo se seca. Los márgenes de jardines de lluvia y las orillas de arroyos son ideales.

•

Corte a 18-24 inches a principios de julio para estimular tallos más cortos y robustos si su lugar está lo suficientemente resguardado como para necesitar una forma más compacta (según NC State).

•

Deje las cabezas de semillas en pie durante el invierno para las aves y el interés estructural; corte a finales del invierno o principios de la primavera antes de que comiencen los nuevos brotes.

Lifecycle

Planting

Plante en primavera u otoño en suelos húmedos, bien drenados u ocasionalmente encharcados, con pH neutro; los márgenes de jardines de lluvia, las orillas de arroyos y las plantaciones de pradera constantemente húmedas son ideales. El pleno sol produce los tallos más robustos; la semisombra es tolerada, pero las plantas se estiran y pueden volcarse sin soporte.

Transplanting

Corte intensamente en otoño tras las heladas; mueva las divisiones a principios de la primavera cuando emerjan los nuevos brotes. Las matas establecidas prefieren permanecer en su lugar — las plantas viejas grandes son difíciles de reubicar limpiamente.

Early growth

Mantenga una humedad constante del suelo durante el establecimiento — el eupatorio no tolera los suelos secos y se quemará y encogerá en los bordes de las hojas bajo estrés. Evite exposiciones cálidas y secas.

Maturity

Las matas maduras alcanzan 5-7 feet de altura y 2-4 feet de anchura, con tallos verdes y robustos (a veces con rayas púrpuras) que portan verticilos de hojas en forma de lanza en cada nudo. Los racimos florales en cúpula con aroma a vainilla se abren de julio a septiembre.

Propagation

Divida en otoño cuando la planta se acerca al letargo; se pueden tomar esquejes de tallo a finales de la primavera. La semilla requiere estratificación en frío y tiene bajas tasas de germinación según NC State.

Pollination

Self-fertile

Autofértil — las cabezuelas florales compuestas producen semillas viables sin un compañero, aunque la fructificación mejora notablemente con la polinización cruzada de plantas cercanas. Los racimos en cúpula con aroma a vainilla son de las fuentes de néctar tardías de mayor volumen en la flora del este — monarcas, mariposas golondrinas, saltarinas, abejas nativas y abejorros los visitan concurrentemente.

Plants don't grow alone

Pollinates

Bee

Common eastern bumblebee (Bombus impatiens)

Nectar forage

Butterfly

Painted lady (Vanessa cardui)

UW-Madison Horticulture lists Joe-Pye weed among documented adult nectar sources for V. cardui.

Nectar forage

Bee

American bumblebee (Bombus pensylvanicus)

USDA-FS documents B. pensylvanicus on boneset (Eupatorium); Joe-Pye weed is the split genus Eutrochium, so this is a genus-adjacent inference for the generalist, not a Eutrochium-specific record.

Nectar forage

Bee

Rusty-patched bumble bee (Bombus affinis)

Nectar forage

Fly

Hover flies (flower flies) (Syrphidae)

Nectar forage

Butterfly

Monarch butterfly (Danaus plexippus)

Joe-Pye weed is a canonical late-summer nectar source for monarchs preparing for fall migration. NC State lists "butterflies, skippers, moths, and bees" among the flower visitors; the monarch relationship is heavily documented in pollinator ecology literature.

Nectar forage

Butterfly

Eastern tiger swallowtail (Papilio glaucus)

Eastern tiger swallowtails work the tall domed flower clusters concurrently with other large butterflies; the late-season bloom timing makes joe-pye one of the few reliable nectar sources during the second swallowtail brood.

Nectar forage

Butterfly

Skipper butterflies (Hesperiidae (family-level entry))

NC State explicitly lists skippers among the visitors; the small individual florets within each domed cluster fit short skipper proboscises.

Nectar forage

Bee

European honeybee (Apis mellifera)

NC State notes joe-pye weed flowers "are important for the production of honey" — late-summer joe-pye honey is a recognized regional product.

Seed forage

Bird

Eastern songbirds (multi-species) (multiple species (Passeriformes))

NC State notes "Seed heads provide food for the birds" — finches and sparrows work the standing winter seed heads.

For people

Not eaten by humans

El eupatorio se cultiva como planta ornamental y de polinizadores, no como alimento. Su nombre alude a Joe Pye, un curandero de la época colonial que según los informes utilizaba la planta con fines medicinales; NC State documenta aplicaciones medicinales históricas pero no proporciona advertencias toxicológicas actuales ni recomienda su uso moderno sin orientación experta.

Traditional medicinal use

Named after Joe Pye, an Indigenous American (Mohican) healer of the colonial period who reportedly used the plant medicinally; the common name memorializes the traditional use. Modern internal use is not established and should not be inferred.

Appears in collections

+4

Colección · 8 plantas

Climate-resilient natives for warming zones (eastern NA)

A pollinator-supporting palette of eastern North American natives with broad hardiness ranges and wide native distributions. Built for gardeners who want a planting that can handle warming zones without giving up wildlife value.

Switchgrass

Little bluestem

Common milkweed

Black-eyed Susan

Wild bergamot

Sweet Joe-Pye weed

Cutleaf coneflower

New England aster

+5

Colección · 9 plantas

Native pollinator border (eastern US)

A continuous-bloom native pollinator strip for eastern North America. Covers spring through frost with host + nectar plants spanning monarchs, native bees, hummingbirds, and specialist Lepidoptera. Little bluestem provides the matrix grass + Hesperiidae host.

Butterfly weed

Common milkweed

Purple coneflower

Wild bergamot

Scarlet bee balm

Little bluestem

Sweet Joe-Pye weed

Swamp sunflower

Smooth blue aster

Sources & citations

Cite this page

For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.

Plotwright. (2026, May 17). Eupatorio dulce (Eutrochium purpureum). Retrieved 2026, June 14, from https://plotwright.garden/plants/eutrochium-purpureum

Sources for every fact

Every fact on this page traces to a source. 18 fields cited - 18 source-backed.

NC State Extension Gardener Plant Toolbox

University extension service

Backs 17 fields

Identity

Summary

Plant type

Light

Moisture

Hardiness

Heat zone

Size

Spacing

Habit

Design roles

Seasonal interest

Growth stages

Lifecycle

Regional guidance

Success tips

Designer notes

Open source

Source guide

Wikimedia Commons

Photo · CC BY 2.0

Backs 1 field

Image

Open source

Source guide

Eupatorio dulce

At a glance

Related products

Why it matters

Cold hardiness

Heat tolerance

Where this plant fits

What it needs

Lifecycle

Pollination

Plants don't grow alone

For people

Native range

Climate notes

In the designer

Seasonal interest

Appears in collections

Sources & citations