Red Milkweed
Asclepias rubra
In the Carolinas and Georgia, found in pocosin ecotones, wet pine savannas, seepage bogs in longleaf pine sandhills, seepage swamps. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you
Native to Arkansas (estimated). How scores work Is it native here?
Profile 100%
- Height
- 1.5–3 feet
- Spread
- 10–12 inches
- Light
- Full sun, Partial shade
- Soil moisture
- Usually moist
Space about 1 ft apart from its recorded spread, about 100 per 100 sq ft. Enter your bed size for a count
Will it fit your yard?
At a glance
- Life cycle
- Perennial
- Bloom
- April to September
- Fruiting season
- July to October
Not yet recorded · Leaves
County records are not available.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Places where groundwater keeps the soil or rock wet, such as seepage slopes and spring runs.
Forested wetlands with standing water much of the year, such as cypress and gum swamps.
Who uses this plant?
12CaterpillarsGenus host records with ranges including AR
Genus host records with ranges including AR · Asclepias
- Danaus plexippusMonarch
- Cycnia collarisUnexpected Cycnia
- Cycnia teneraDelicate Cycnia, Dogbane Tiger Moth
- Euchaetes egleMilkweed Tussock Moth or Milkweed Tiger Moth
- Hyalophora cecropiaCecropia Silkmoth, Cecropia Moth
- Papaipema nebrisStalk Borer
- Platynota flavedanaBlack-Shaded Platynota
- Pygarctia spragueiSprague's Pygarctia Moth
- Pyrrharctia isabellaIsabella Tiger Moth, Banded Woolybear
- Spodoptera frugiperdaFall Armyworm Moth
Show all 12
- Strymon melinusGray Hairstreak
- Trichordestra legitimaStriped Garden Caterpillar Moth
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
1BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Asclepias
- Ortalis vetulaPlain Chachalaca
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
Plant details
- Family
- Apocynaceae
- Hardiness
- Zones 6a–9b
- Soil pH
- Acidic
- Flower color
- Pink or purple
- Fruit begins
- July
- Fruit ends
- October
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “April to September” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Flower color · “Pink or purple” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Fruit begins · “July” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Fruit ends · “October” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Hardiness · “Zones 6a–9b” · NC Extension Plant Toolbox
- Height · “1.5–3 feet” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Life cycle · “Perennial” · NC Extension Plant Toolbox
- Light · “Full sun (6 or more hours of direct sunlight a day); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Soil · “Moist; Occasionally wet” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Soil pH · “Acidic” · NC Extension Plant Toolbox
- Spread · “10–12 inches” · NC Extension Plant Toolbox
Conservation status
| Arkansas rank | SNR |
|---|---|
| Global rank | G4G5 |
| AR status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition
- Arkansas occurrence source
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications

