Epilobium canum is often pollinated by hummingbirds. In a garden the plant prefers to be cultivated in well-drained soil exposed to full sun but protected from the wind, and needs little watering. Cultivated varieties come in other colors besides red — pink and white are common. It is a perennial herb that is native to California and is also found outside of California, but is confined to western North America.It is a subshrub notable for the profusion of bright scarlet flowers in late summer and autumn. Petals 8–17 mm.