perennial

Swamp milkweed

Asclepias incarnata

Climate-suitable non-native

Current-climate suitability

Create a garden to see this

Future-climate resilience

Create a garden to see this

Sun

Full sun

Soil moisture

moisture-retentive, waterlogged

Heat tolerance

Up to about 38°C

Cold tolerance

Down to about -32°C

Waterlogging tolerance

5/5

Drought tolerance

2/5

Mature size

0.9–1.5 m tall, 0.6 m spread

Seasonal interest

Summer · Rose pink

Maintenance

low

Wildlife supported

General wildlife value 5/5 (verified species relationships are shown only where structured data exists)

Known risks or warnings

Sap is an irritant; wear gloves.

Toxicity: notable

Native status is never inferred from climate similarity. Plants restricted or invasive in a jurisdiction are excluded from recommendations there.

Demonstration data. Climate, plant and retailer records shown here are realistic samples awaiting horticultural validation and live data connections.