Gulf Coast Swallow-Wort
Pattalias palustris
- Native to:
- Bahamas, Belize, Cayman Is., Cuba, Mexico, Turks-Caicos Is., United States
iNaturalist: © prairie-willow (iNaturalist #85387680)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Apocynaceae
- Genus:
- Pattalias
- Species:
- Pattalias palustris
- USDA Symbol:
- CYAN5
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Vine
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul,aug,sep
- Bloom Colors:
- white, pink
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★★☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Eucereon carolina, Eucereon confine, Florida milkweed vine moth (Glyphodes floridalis), Obscure Sphinx (Erinnyis obscura), ⚠️Monarch butterfly (Danaus plexippus), Queen butterfly (Danaus gilippus)
Garden & Ecology Notes
- Wildlife Value:
- butterflies, bees
- Deer Resistant:
- Yes
- Salt Tolerant:
- Yes
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- prefers wetland areas with organic matter
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–42 days
- Notes:
- Seeds germinate best with light exposure and consistent moisture. Cold stratification improves germination rates.