Floating Pondweed

Potamogeton natans

Native to:
Afghanistan, Albania, Algeria, Austria, Baltic States, Belarus, Belgium, Bulgaria, Canada, China, Corse, Czechia-Slovakia, Denmark, East Aegean Is., Finland, Føroyar, France, Germany, Greece, Hungary, Iceland, India, Iran, Ireland, Italy, Japan, Kazakhstan, Kirgizstan, Korea, Krym, Kuril Is., Labrador, Lebanon-Syria, Libya, Mexico, Morocco, Myanmar, Nepal, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Poland, Portugal, Prince Edward I., Romania, Russia, Sardegna, Sicilia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Tunisia, Türkiye, Ukraine, United States, Uzbekistan, Yemen

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Potamogetonaceae
Genus:
Potamogeton
Species:
Potamogeton natans
USDA Symbol:
PONA4

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Aquatic
Height:
150 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug,sep
Bloom Colors:
green

Wildlife Benefits

Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Parapoynx obscuralis

Garden & Ecology Notes

Wildlife Value:
waterfowl, fish, aquatic invertebrates
Deer Resistant:
Yes

Soil Requirements

Soil Type:
rich, organic, silty or clay soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Typically found in still or slow-moving freshwater bodies.

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Germination Time:
14–60 days
Notes:
Seeds germinate best when submerged in shallow water after cold stratification. Light not required.

The above propagation data sourced from Claude AI