Onerow Yellowcress
Nasturtium microphyllum
- Native to:
- Afghanistan, Australia, Austria, Belgium, Czechia-Slovakia, Denmark, Eritrea, Ethiopia, France, Germany, Greece, India, Iran, Ireland, Italy, Morocco, Netherlands, NW. Balkan Pen., Pakistan, Poland, Spain, Sweden, Switzerland, Yemen
Krzysztof Ziarnek, Kenraiz






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Brassicaceae
- Genus:
- Nasturtium
- Species:
- Nasturtium microphyllum
- USDA Symbol:
- NAMI2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 120 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- may,jun,jul,aug,sep
- Bloom Colors:
- white
Host Plant for Caterpillars
Green-veined white (Pieris napi)
Garden & Ecology Notes
- Wildlife Value:
- waterfowl, small mammals
- Fragrant:
- Yes
Soil Requirements
- Soil Type:
- rich, moisture-retentive loamy soil
- pH:
- 6.5 - 7.5 (neutral to slightly alkaline)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- commonly found in stream banks and wet meadows
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 7–21 days
- Notes:
- Seeds germinate readily in wet or waterlogged conditions. Can also propagate vegetatively from stem fragments.
The above propagation data sourced from Claude AI