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

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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