Variableleaf Pondweed
Potamogeton gramineus
- Native to:
- Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Canada, China, Corse, Czechia-Slovakia, Denmark, Finland, Føroyar, France, Germany, Greece, Greenland, Hungary, Iceland, India, Iran, Ireland, Italy, Japan, Kazakhstan, Korea, Krym, Kuril Is., Labrador, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Poland, Portugal, Prince Edward I., Romania, Russia, Sardegna, Sicilia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Türkiye, Türkiye-in-Europe, Ukraine, United States, Uzbekistan
pellaea (www.flickr.com)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Potamogetonaceae
- Genus:
- Potamogeton
- Species:
- Potamogeton gramineus
- USDA Symbol:
- POGR8
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Aquatic
- Height:
- 100 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- green
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, fish
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- nutrient-rich, silty or sandy soil
- pH:
- 6.0 - 8.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in freshwater lakes and ponds
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–90 days
- Notes:
- Seeds germinate best when submerged in cold water; vegetative propagation via rhizomes and turions is more common than seed propagation.
The above propagation data sourced from Claude AI