Marsh Arrowgrass
Triglochin palustris
- Native to:
- Afghanistan, Albania, Aleutian Is., Algeria, Argentina, Austria, Baltic States, Belarus, Belgium, Bolivia, Bulgaria, Canada, Chile, China, Czechia-Slovakia, Denmark, Finland, Føroyar, France, Germany, Great Britain, Greece, Greenland, Hungary, Iceland, India, Iran, Iraq, Ireland, Italy, Japan, Kazakhstan, Kirgizstan, Korea, Krym, Kuril Is., Labrador, Morocco, Nepal, Netherlands, New Zealand, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Palestine, Poland, Portugal, Prince Edward I., Romania, Russia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Türkiye, Turkmenistan, Ukraine, United States, Uzbekistan
iNaturalist: © tyson_ehlers (iNaturalist #85489726)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Juncaginaceae
- Genus:
- Triglochin
- Species:
- Triglochin palustris
- USDA Symbol:
- TRPA28
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Graminoid
- Height:
- 50 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul,aug
- Bloom Colors:
- green, purple
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, small mammals
Soil Requirements
- Soil Type:
- wet, nutrient-rich, peaty soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- commonly found in marshes and wet meadows
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds benefit from cold moist stratification; sow on surface of moist soil.