It’s that time of year when Sonoma County is covered in golden poppies, violet irises, indigo forget-me-knots, and an array of other vibrantly colored wildflowers. The Plant Walk: Wildflowers of Northern Sonoma County provides an opportunity to hike through North Sonoma Mountain Regional Park and Preserve in Santa Rosa and learn more about the flowers that like to grow there. It will be held on May 13, 1–3 p.m., and is $10–$12; parking is $7. Register at tinyurl.com/2z75jknu. Find out more about the types of Sonoma County wildflowers at tinyurl.com/26cw7dfb.