Longhorn Steer's-Head
Dicentra uniflora
- Native to:
- Canada, United States
iNaturalist: © whitneybrook (iNaturalist #6936367)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Papaveraceae
- Genus:
- Dicentra
- Species:
- Dicentra uniflora
- USDA Symbol:
- DIUN
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 15 cm
- Light Requirements:
- Full Sun,Part Shade,Shade
- Drought Tolerance:
- Low
- Bloom Months:
- mar,apr,may
- Bloom Colors:
- white, pink
Wildlife Benefits
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Clodius Parnassian (Parnassius clodius)
Garden & Ecology Notes
- Deer Resistant:
- Yes
Soil Requirements
- Soil Type:
- gravelly, well-drained, nutrient-poor soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to mountainous regions, prefers rocky outcrops
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 30–60 days
- Notes:
- Seeds require cold stratification for 2-3 months; germination occurs in spring after temperatures warm.
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).
Source: Claude AI