Coastal Bush Lupine (Lupinus arboreus) is in the Legumes family (Fabaceae). Across the U.S., iNaturalist users have logged 1,018 research-grade flowering observations of it in our sample, peaking in May.
Nationally it blooms mainly from April to July, but timing varies a lot by state and elevation — see the table below.
When to photograph Coastal Bush Lupine: observations by month (U.S.)
About Coastal Bush Lupine
Lupinus arboreus, common name yellow bush lupine (US) or tree lupin (UK), is a species of flowering plant in the legume family Fabaceae.From Wikipedia via iNaturalist — article, CC BY-SA.
Coastal Bush Lupine by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| California | 970 | May | Apr–Jul |
| Oregon | 25 | May | May–Jun |
| Washington | 23 | June | May–Jun |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (Legumes)
White Clover
Red Clover
Texas bluebonnet
Bird's-Foot Trefoil
Rose Clover
Tomcat Clover
American hog-peanut
Purple Crownvetch
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 Coastal Bush Lupine?
Nationally, May has the most observations, with the main season from April to July.
Where is Coastal Bush Lupine most often seen?
The most observations come from California, Oregon, Washington.