Park Highway Closed for Winter Season
Lassen National Park Highway is closed to through traffic for the winter season. The highway will remain open to the the Kohm Yah-mah-nee Visitor Center (1 mile from the SW entrance) and Manzanita Lake (1 mile inside the NW entrance). More »
Lassen Volcanic offers spectacular opportunities for wildflower viewing during the summer months. View photos of wildflowers in the park in our wildflowers photo gallery, download a copy of our wildflower guide featuring some of the most commonly sighted wildflowers, or download a copy of the extensive park flora list.
Blooming times vary each year and are greatly affected by the winter's snowpack. Blooming time also varies with each wildflower species. For example, mountain mules ear, snow plant, and western wallflower bloom earlier in the season, while California corn lily and silverleaf lupine tend to bloom later. Below are some rough estimates for wildflower appearance:
Did You Know?
Lassen Volcanic National Park started as two separate national monuments designated by President Theodore Roosevelt in 1907: Cinder Cone National Monument and Lassen Peak National Monument.