Firecracker Penstemon (Penstemon eatonii) is a vibrant and drought-tolerant perennial wildflower native to the arid and semi-arid regions of the western United States. It thrives in desert washes, rocky slopes, canyon edges, and dry open woodlands. Named for its brilliant scarlet-red tubular flowers, this species stands out in early spring landscapes, attracting hummingbirds and adding bold color to native gardens and restoration projects. With its upright growth and narrow, glossy green leaves, Firecracker Penstemon provides both ornamental beauty and ecological function.
Firecracker Penstemon is a high-value nectar plant and extremely valuable to hummingbirds, particularly early in the season when few other native flowers are in bloom. It also supports native bees, bumblebees, and butterflies. This penstemon’s long blooming period—from early spring into early summer in milder regions—makes it a dependable forage resource in pollinator habitats. Its deep taproot helps stabilize dry, gravelly soils and allows it to thrive in xeric conditions.
Firecracker Penstemon grows best in full sun and well-drained soils, including sandy or rocky substrates. It is highly adapted to low-water environments and is ideal for xeriscaping, slopes, and dry meadow plantings. Seeds germinate best with some cold stratification and are best sown in fall or artificially chilled before spring sowing. Once established, Firecracker Penstemon is long-lived, low-maintenance, and will reseed under favorable conditions.
Firecracker Penstemon - Penstemon eatonii
Scientific Name Penstemon eatonii Habitat Desert washes, rocky slopes, dry canyons, open woodlands USDA Zone 4 – 9 Native Region Western United States Phenology Perennial Height 18 – 36" Light Requirement Full Sun Water Requirement Low Soil Type Sandy, Rocky, or Loamy Germination Time 30 days cold stratification, 14-30 days warm Difficulty ⸙⸙ Planting Season Fall or Early Spring Bloom Season Early Spring to Early Summer Pollinators Hummingbirds, Native Bees, Bumblebees, Butterflies