Bluntleaf Pondweed
Potamogeton obtusifolius
- Native to:
- Austria, Baltic States, Belarus, Belgium, Canada, China, Czechia-Slovakia, Denmark, Finland, France, Germany, Hungary, Iceland, Ireland, Italy, Japan, Kazakhstan, Kirgizstan, Labrador, Myanmar, Netherlands, Norway, NW. Balkan Pen., Poland, Prince Edward I., Romania, Russia, Sweden, Switzerland, Ukraine, United States
Nathaniel Lord Britton & Addison Brown





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Potamogetonaceae
- Genus:
- Potamogeton
- Species:
- Potamogeton obtusifolius
- USDA Symbol:
- POOB2
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 clayey soil
- pH:
- 6.0 - 8.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist to submerged
- Notes:
- commonly found in slow-moving or still waters
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–90 days
- Notes:
- Seeds typically germinate underwater in spring after winter dormancy; turions also provide vegetative propagation.
The above propagation data sourced from Claude AI
Pre-treatment: Seeds were cold stratified for 90 days.
Source: npn.rngr.net