Sulphur Indian Paintbrush
Castilleja septentrionalis
- Native to:
- Canada, Labrador, United States
iNaturalist: © jeffreylougee (iNaturalist #29212455)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Orobanchaceae
- Genus:
- Castilleja
- Species:
- Castilleja septentrionalis
- USDA Symbol:
- CASU12
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 50 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- yellow, white, pale yellow
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Host Plant for Caterpillars
Eupithecia anticaria
Garden & Ecology Notes
- Wildlife Value:
- hummingbirds, bees, butterflies
- Deer Resistant:
- Yes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–60 days
- Notes:
- Hemiparasitic; requires host plant roots for successful establishment. Surface sow as seeds need light for germination.