Whorl-Leaf Watermilfoil

Myriophyllum verticillatum

Native to:
Afghanistan, Albania, Algeria, Austria, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Canada, China, Czechia-Slovakia, Denmark, Finland, France, Germany, Greece, Hainan, Hungary, India, Iran, Iraq, Ireland, Italy, Japan, Kazakhstan, Kirgizstan, Korea, Krym, Labrador, Morocco, Netherlands, Norway, NW. Balkan Pen., Pakistan, Palestine, Poland, Portugal, Prince Edward I., Romania, Russia, Sardegna, Sicilia, Spain, Sweden, Switzerland, Tadzhikistan, Taiwan, Türkiye, Türkiye-in-Europe, Ukraine, United States, Uzbekistan, Vietnam

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Haloragaceae
Genus:
Myriophyllum
Species:
Myriophyllum verticillatum
USDA Symbol:
MYVE3

Growth Characteristics

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

Garden & Ecology Notes

Wildlife Value:
waterfowl, fish, aquatic invertebrates
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
Notes:
Commonly found in slow-moving or still water bodies.

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–42 days
Notes:
Seeds germinate best submerged in shallow water. Vegetative propagation via stem fragments is more common and reliable.

The above propagation data sourced from Claude AI