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Swamp Milkweed

Asclepias incarnata, Apocynaceae

Zones
3–8
Layer
Herbaceous
Lifespan
Perennial
Growth
Moderate

Guild Roles

Pollinator AttractorBeneficial Insect Habitat

Growing Conditions

Sun

Full Sun (preferred)

Water

HighHigh

Soil pH

6 – 7.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Cardinal FlowerLobelia cardinalis
Beneficial Insect HabitatPollinator Sharing
Jerusalem ArtichokeHelianthus tuberosus
Nutrient AccumulationBeneficial Insect Habitat
Prairie DropseedSporobolus heterolepis
Wind ProtectionBeneficial Insect Habitat

Antagonistic Plants

Common MilkweedAsclepias syriaca

Both milkweed species compete for similar ecological niches and resources

Uses

Functions

Pollinator SupportWildlife HabitatMonarch Butterfly Support

Common Questions

What zones does Swamp Milkweed grow in?

Swamp Milkweed grows in USDA hardiness zones 3 through 8.

What are good companion plants for Swamp Milkweed?

Good companions for Swamp Milkweed include Cardinal Flower, Jerusalem Artichoke, Prairie Dropseed.

Design guilds with Swamp Milkweed and see companion relationships visually.

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