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Aquatic Milkweed

Asclepias perennis

Found in cypress-gum swamps, bottomland hardwood forests, marshes. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you

66
Strong

Native to Mississippi (estimated). How scores work Is it native here?

Profile 82%

Height
1–3 feet
Light
Full sun
Soil moisture
Moist to wet
Will it fit your yard?

At a glance

Life cycle
Perennial
Fruiting season
August to September

Not yet recorded · Spread · Leaves · Bloom

Bloom: NC species account not read yet.

Spread and leaves: no source found yet.

This plant is missing most of its facts, so Quercus is looking them up in old botany books.

Recorded in 45 Mississippi counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

1 of 3

Swamps

Forested wetlands with standing water much of the year, such as cypress and gum swamps.

Floodplain and bottomland forests

Forests on low ground beside rivers and streams that flood from time to time.

Freshwater marshes

Open, herb-covered wetlands with fresh, non-tidal water.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

13CaterpillarsGenus host records with ranges including MS

Genus host records with ranges including MS · Asclepias

  • Danaus plexippusMonarch
  • Agathodes monstralisSky-Pointing Moth
  • Cycnia collarisUnexpected Cycnia
  • Cycnia teneraDelicate Cycnia, Dogbane Tiger Moth
  • Danaus gilippusQueen
  • Euchaetes egleMilkweed Tussock Moth or Milkweed Tiger Moth
  • Hyalophora cecropiaCecropia Silkmoth, Cecropia Moth
  • Papaipema nebrisStalk Borer
  • Platynota flavedanaBlack-Shaded Platynota
  • Pyrrharctia isabellaIsabella Tiger Moth, Banded Woolybear
Show all 13
  • Spodoptera frugiperdaFall Armyworm Moth
  • Strymon melinusGray Hairstreak
  • Pygarctia eglenensis
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
59BeesSoutheastern regional records

Southeastern regional records · Asclepias

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
0Specialist beesPollen specialists
1BirdsRecorded genus food-resource interactions; not a state feeding claim

Recorded genus food-resource interactions; not a state feeding claim · Asclepias

  • Ortalis vetulaPlain Chachalaca
Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)

Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Apocynaceae
Flower color
White or pink
Fruit begins
August
Fruit ends
September

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Swamp Forest Milkweed

Conservation status

Mississippi rankSNR
Global rankG5
MS statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Sources