Based on 2,592 research-grade iNaturalist flowering observations in California, Vinegar Weed blooms mainly from July to October, peaking in September. It ranks #60 among wildflowers recorded in the state in our data.
Trichostema lanceolatum
Vinegar Weed in California by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also in bloom in California in September
California fuchsia
Coyote Brush
California Aster
Hayfield Tarweed
Sacred Datura
Telegraphweed
Scarlet Monkeyflower
California poppy
Places to look in California
Botanical GardenThe Huntington Library, Art Museum, and Botanical Gardens
State ParkHearst Castle
Botanical GardenSan Francisco Botanical Garden
State ParkAnza-Borrego Desert State Park
National ForestAngeles National Forest
National ForestSequoia National Forest
FAQ
When does Vinegar Weed bloom in California?
Mainly July–October, with the most records in September.
How common is Vinegar Weed in California?
It ranks #60 by number of iNaturalist flowering observations among wildflowers in California (2,592 records in our sample).