Tapered Rosette Grass
Dichanthelium acuminatum
- Native to:
- Belize, Canada, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guam, Guatemala, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Panamá, Puerto Rico, United States, Venezuela, Virgin Islands
iNaturalist: © ciafre (iNaturalist #240664822)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Poaceae
- Genus:
- Dichanthelium
- Species:
- Dichanthelium acuminatum
- USDA Symbol:
- DIAC2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 100 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- may,jun,jul,aug,sep
- Bloom Colors:
- green, purple
Garden & Ecology Notes
- Wildlife Value:
- birds, small mammals
- Fall Color:
- yellow, brown
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Can resprout from rootstocks after fire; often increases in frequency with periodic burning.
Soil Requirements
- Soil Type:
- sandy, well-drained, nutrient-poor soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- commonly found in open woods and prairies
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds benefit from cold, moist stratification for 30-60 days to break dormancy.
Pre-treatment: Conditioned seed is planted into round cell greenhouse flat liners with 38 cells per flat that have been filled with coarse processed bark and composted pine bark growing medium. Seed is surface sown at a rate of 3-5 seeds per cell and lightly covered with starter sized, 1/16" - 1/8" diameter, granite poultry grit to combat damping off diseases. Prepared flats are lightly hand watered to slightly moisten the growing medium.
Source: npn.rngr.net