Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Potamogetonaceae

Genus:

Potamogeton

Species:

Potamogeton illinoensis

USDA Symbol:

POIL

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Aquatic

Height:

200 cm

Light Requirements:

Full Sun

Drought Tolerance:

Low

Bloom Months:

jun,jul,aug,sep

Bloom Colors:

green

Garden & Ecology Notes

Wildlife Value:

waterfowl, fish, aquatic invertebrates

Deer Resistant:

Yes

Soil Requirements

Soil Type:

nutrient-rich, silty or sandy substrate

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

Germination Time:

14–60 days

Notes:

Seeds germinate best when submerged in shallow water; cold stratification improves germination rates.