Southern Amaranth
Amaranthus australis
- Native to:
- Colombia, Cuba, Haiti, Jamaica, Mexico, Puerto Rico, Trinidad-Tobago, United States
iNaturalist: © jcs13 (iNaturalist #9487886)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Amaranthaceae
- Genus:
- Amaranthus
- Species:
- Amaranthus australis
- USDA Symbol:
- AMAU
Growth Characteristics
- Life Cycle:
- Annual
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 100 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep,oct
- Bloom Colors:
- green
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, birds
Soil Requirements
- Soil Type:
- fertile, moisture-retentive loam
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in wetlands and riverbanks
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 3–10 days
- Notes:
- Seeds germinate readily in warm, moist conditions with light. Surface sow or barely cover as light may enhance germination.
The above propagation data sourced from Claude AI