Eurasian Watermilfoil
Myriophyllum spicatum
- Native to:
- Afghanistan, Albania, Aleutian Is., Algeria, Angola, Austria, Baleares, Baltic States, Belarus, Belgium, Botswana, Bulgaria, Cameroon, Canary Is., China, Corse, Czechia-Slovakia, Denmark, East Aegean Is., Egypt, Eritrea, Ethiopia, Finland, France, Germany, Greece, Hainan, Hungary, India, Iraq, Ireland, Italy, Japan, Kazakhstan, Kirgizstan, Korea, Kriti, Krym, Kuril Is., Lebanon-Syria, Malawi, Morocco, Namibia, Nansei-shoto, Nepal, Netherlands, Norway, NW. Balkan Pen., Pakistan, Palestine, Philippines, Poland, Portugal, Romania, Russia, Sardegna, Saudi Arabia, Sicilia, South Africa, Spain, Sudan-South Sudan, Sumatera, Sweden, Switzerland, Tadzhikistan, Tanzania, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Turkmenistan, Ukraine, Uzbekistan, Vietnam, Yemen, Zambia, Zimbabwe
M. F. Stapleton
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Haloragaceae
- Genus:
- Myriophyllum
- Species:
- Myriophyllum spicatum
- USDA Symbol:
- MYSP2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Aquatic
- Height:
- 300 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- pink, red
Wildlife Benefits
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
chocolate china-mark moth (Parapoynx badiusalis), watermilfoil leafcutter moth (Parapoynx allionealis)
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, fish cover
- Deer Resistant:
- Yes
- Salt Tolerant:
- Yes
Soil Requirements
- Soil Type:
- rich, organic, waterlogged 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:
- None required
- Notes:
- Primarily reproduces vegetatively via fragmentation; seed germination is uncommon in nature.
The above propagation data sourced from Claude AI
Pre-treatment: Seeds were cold stratified for 120 days
Source: npn.rngr.net