Common Bladderwort
Utricularia macrorhiza
- Native to:
- Canada, China, Japan, Kuril Is., Labrador, Mexico, Prince Edward I., Russia, United States
Naoki Takebayashi (www.flickr.com) from Fairbanks, AK, USA





Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Lentibulariaceae
- Genus:
- Utricularia
- Species:
- Utricularia macrorhiza
- USDA Symbol:
- UTMA
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:
- yellow
Garden & Ecology Notes
- Wildlife Value:
- aquatic invertebrates, waterfowl
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- nutrient-poor, sandy or peaty soil
- pH:
- 5.0 - 7.0 (acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist to submerged
- Notes:
- commonly found in shallow water of ponds and marshes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–90 days
- Notes:
- Seeds require wet, cold stratification; germination occurs in shallow water or saturated substrate.
The above propagation data sourced from Claude AI