Common Name: Sulfur Indian Paintbrush
Scientific Name: Castilleja sulphurea
Native/Introduced: Native
Main Uses:
~Wildflower plantings
~As a pollinator
Height: 1-2 feet tall
Colors: White, light yellow & light green flower
Flowering Season: Summer
Soil Types: Wet, medium textured soil
Tolerances: Wet soil
Sun or Shade: Full sun
Lifecycle: Perennial
Planting Seed Rate: 0.25-0.5/acre
Estimated Seeds Per Pound: 4,900,000 seeds/lbs
Optimal Planting Season: Fall or spring
Planting Depth: Surface to 1/4 inch
Category: Forbs
 
Description: 
Sulfur Indian Paintbrush, scientifically known as Castilleja sulphurea, is a perennial plant that exhibits a low-growing habit, making it a distinctive and attractive addition to natural landscapes. This plant is characterized by its unique pale yellow bracts. This wildflower typically blooms during the summer season, adding a vibrant splash of color to its surroundings.
 
This species of Indian Paintbrush is naturally distributed across a significant portion of the intermountain region. It can often be found thriving in moist, sub-alpine meadows and exposed flats, showcasing its adaptability to various ecological niches within its range.
 
Sulfur Indian Paintbrush has gained popularity in landscaping and conservation efforts, most notably in wildflower plantings. Its striking appearance and ecological value as a pollinator attract a variety of insects, making it a valuable addition to garden and restoration projects aimed at supporting local biodiversity.
 
In terms of soil preferences, Sulfur Indian Paintbrush thrives in medium-textured soils, demonstrating its ability to grow in soils with a balanced mix of sand, silt, and clay. Additionally, it is a sun-loving plant, preferring full-sun conditions for optimal growth and flowering.
 
NRCS Plant Profile: https://plants.usda.gov/home/plantProfile?symbol=CASU12