sweetflag
Acorus americanus
- Native to:
- China, Prince Edward I., Russia, United States, Virgin Islands
Jack Greenlee, U.S. Forest Service
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Acoraceae
- Genus:
- Acorus
- Species:
- Acorus americanus
- USDA Symbol:
- ACAM
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 120 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul
- Bloom Colors:
- greenish-yellow
Garden & Ecology Notes
- Wildlife Value:
- birds, aquatic insects
- Deer Resistant:
- Yes
- Fragrant:
- Yes
Soil Requirements
- Soil Type:
- rich, moisture-retentive loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- commonly found in wetlands and marshy areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 30–60 days
- Notes:
- Seeds require cold stratification; sow in moist soil and keep consistently wet.
Pre-treatment: Seeds were cold stratified for 210 days
Source: npn.rngr.net
Where to Buy
Nationwide Seller
- Vermont Wildflower Farm (nursery and seeds)
- Pizzo Native Plant Nursery (wholesale nursery)
- Prairie Moon Nursery (nursery and seeds)
- North Creek Nurseries (nursery)