Bohemian Knotweed
Reynoutria × bohemica
- Native to:
- Japan
AnRo0002






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Polygonaceae
- Genus:
- Reynoutria
- Species:
- Reynoutria × bohemica
- USDA Symbol:
- POBO10
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 400 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- aug,sep
- Bloom Colors:
- white, greenish-white
Reported Fauna Sightings
Bees: Common eastern (Bombus impatiens)
Garden & Ecology Notes
- Deer Resistant:
- Yes
- Salt Tolerant:
- Yes
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- invasive species, adaptable to various conditions
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds benefit from cold stratification; germination occurs in spring under moist conditions.