Denseflower Knotweed
Persicaria glabra
- Native to:
- Argentina, Bangladesh, Bolivia, Brazil, Cayman Is., Central African Republic, China, Colombia, Cuba, Dominican Republic, Ethiopia, French Guiana, Guatemala, Hainan, Haiti, Honduras, India, Jamaica, Jawa, Mexico, Myanmar, Nepal, Nicaragua, Oman, Pakistan, Paraguay, Peru, Philippines, Puerto Rico, Saudi Arabia, Socotra, Sri Lanka, Sudan-South Sudan, Taiwan, Thailand, United States, Uruguay, Vietnam, Yemen
Dinesh Valke (www.flickr.com) from Thane, India
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Polygonaceae
- Genus:
- Persicaria
- Species:
- Persicaria glabra
- USDA Symbol:
- POGL10
Growth Characteristics
- Life Cycle:
- Annual | Perennial
- Growth Habit:
- Forb/herb
- Height:
- 100 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jul,aug,sep,oct
- Bloom Colors:
- white, pink
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, songbirds
Soil Requirements
- Soil Type:
- moist, fertile, silty or loamy soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in wetlands and riverbanks
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate best with moist stratification and exposure to light.
The above propagation data sourced from Claude AI