Northern Water-Starwort

Callitriche hermaphroditica

Native to:
Aleutian Is., Baltic States, Belarus, Canada, China, Czechia-Slovakia, Denmark, Finland, Føroyar, Germany, Greenland, Iceland, India, Ireland, Japan, Kazakhstan, Kirgizstan, Kuril Is., Labrador, Netherlands, Norway, Poland, Romania, Russia, Sweden, Tadzhikistan, Ukraine, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Plantaginaceae
Genus:
Callitriche
Species:
Callitriche hermaphroditica
USDA Symbol:
CAHE2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
50 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug,sep

Garden & Ecology Notes

Wildlife Value:
waterfowl, aquatic invertebrates
Deer Resistant:
Yes

Soil Requirements

Soil Type:
nutrient-rich, silty or clayey soil
pH:
6.0 - 8.0 (neutral to slightly alkaline)
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:
14–30 days
Notes:
Seeds require submersion in water and cool temperatures for germination.

The above propagation data sourced from Claude AI