American Yellowrocket
Barbarea orthoceras
- Native to:
- Aleutian Is., Canada, China, Japan, Korea, Kuril Is., Labrador, Mexico, Russia, Taiwan, United States
Walter Siegmund (talk)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Brassicaceae
- Genus:
- Barbarea
- Species:
- Barbarea orthoceras
- USDA Symbol:
- BAOR
Growth Characteristics
- Life Cycle:
- Biennial | Perennial
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- apr,may,jun,jul
- Bloom Colors:
- yellow
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Plutella porrectella, Large Marble (Euchloe ausonides), Sara Orangetip (Anthocharis sara)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies
Soil Requirements
- Soil Type:
- moist, fertile, well-drained soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates moderate drainage
- Moisture:
- consistently moist
- Notes:
- Commonly found in wet meadows and along streams.
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 7–21 days
- Notes:
- Germinates best with light exposure and cool temperatures around 15-20°C.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: Claude AI