Columbian Yellowcress

Rorippa columbiae

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Brassicaceae
Genus:
Rorippa
Species:
Rorippa columbiae
USDA Symbol:
ROCO3

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
30 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
may,jun,jul,aug
Bloom Colors:
yellow

Garden & Ecology Notes

Wildlife Value:
waterfowl

Soil Requirements

Soil Type:
moist, sandy to silty loam
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
commonly found in wetland areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–28 days
Notes:
Seeds require light for germination and moist to wet conditions.

The above propagation data sourced from Claude AI