Vinegar Weed (Trichostema lanceolatum) is in the Mint Family family (Lamiaceae). Across the U.S., iNaturalist users have logged 2,644 research-grade flowering observations of it in our sample, peaking in September.
Nationally it blooms mainly from July to October, but timing varies a lot by state and elevation — see the table below.
When to photograph Vinegar Weed: observations by month (U.S.)
About Vinegar Weed
Trichostema lanceolatum, with the common names vinegarweed and camphor weed, is an annual flowering herb of the mint family native to western North America....From Wikipedia via iNaturalist — article, CC BY-SA.
Vinegar Weed by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| California | 2,592 | September | Jul–Oct |
| Oregon | 52 | August | Jul–Sep |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (Mint Family)
Red Deadnettle
Common Selfheal
Ground-Ivy
Henbit Deadnettle
Wild Bergamot
Lyreleaf Sage
Chia
American germander
Photography tips
- Photograph flowers on calm, overcast mornings to avoid wind blur and harsh shadows.
- Get low: a shallow depth of field (f/2.8–f/5.6) isolates a bloom against soft color.
- Stay on trails — trampling meadows kills plants and ruins next year's display.
- Try a kaleidoscope abstract of a single bloom with our online kaleidoscope tool.
FAQ
When is the best time to photograph Vinegar Weed?
Nationally, September has the most observations, with the main season from July to October.
Where is Vinegar Weed most often seen?
The most observations come from California, Oregon.