Lassen Volcanic offers spectacular opportunities for wildflower viewing during the summer months. 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:
Download the Lassen Wildflower Guide (pdf, 1.2MB), which features 12 commonly sighted species or the more extensive park-wide Flora List (xls, 51KB).
Last updated: July 7, 2018