North America Native Plant

Bajada Lupine

Botanical name: Lupinus concinnus optatus

USDA symbol: LUCOO

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Lupinus concinnus J. Agardh var. optatus C.P. Sm. (LUCOO3)   

Bajada Lupine: A California Native Worth Getting to Know Meet the bajada lupine (Lupinus concinnus optatus), a charming annual wildflower that calls California home. While it might not be the showiest plant in your garden center, this native forb has its own understated appeal and plays an important role in ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3?: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Subspecies or variety is vulnerable: Either very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or factors are making it vulnerable to extinction. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals. ⚘ Secure: At very low or no risk of extinction in the jurisdiction due to a very extensive range, abundant populations or occurrences, with little to no concern from declines or threats. ⚘

Bajada Lupine: A California Native Worth Getting to Know

Meet the bajada lupine (Lupinus concinnus optatus), a charming annual wildflower that calls California home. While it might not be the showiest plant in your garden center, this native forb has its own understated appeal and plays an important role in California’s natural landscapes.

What Makes Bajada Lupine Special?

Bajada lupine is what botanists call a forb – essentially a non-woody flowering plant that completes its entire life cycle in just one growing season. Don’t let its annual nature fool you though; this little lupine packs plenty of character into its short but sweet lifespan.

As a true California native, bajada lupine has evolved specifically to thrive in the Golden State’s unique climate and soil conditions. It’s perfectly adapted to local rainfall patterns, temperature fluctuations, and soil types that have shaped California’s landscapes for thousands of years.

Where You’ll Find It Growing Wild

This lupine species is exclusively found in California, where it grows naturally in various habitats throughout the state. Its distribution reflects its preference for the specific environmental conditions that make California such a biodiversity hotspot.

A Word of Caution: Conservation Considerations

Before you start planning your bajada lupine garden, there’s something important to know. This species has a somewhat unclear conservation status (listed as S5T3? in scientific databases), which means experts aren’t entirely certain about its population stability. While this doesn’t mean it’s definitely rare or endangered, it does suggest we should approach cultivation thoughtfully.

If you’re interested in growing bajada lupine, make sure to source seeds or plants only from reputable native plant nurseries that practice ethical collection methods. Never collect seeds or plants from wild populations – this can harm already vulnerable native plant communities.

Why Consider Bajada Lupine for Your Garden?

Here are some compelling reasons to give this California native a spot in your landscape:

  • True native heritage: Supporting plants that naturally belong in your area helps maintain local ecosystem balance
  • Low maintenance potential: As a plant adapted to California conditions, it likely requires less water and care than non-native alternatives
  • Wildlife connections: Native lupines typically support various beneficial insects and wildlife species
  • Authentic California character: Add genuine local flavor to your garden design

Garden Design Ideas

Since bajada lupine is an annual forb, it works well in:

  • Native wildflower meadows and prairies
  • Naturalized garden areas
  • Mixed annual displays
  • Wildlife habitat gardens
  • Water-wise landscape designs

The Growing Challenge

Here’s where things get a bit tricky – specific growing information for bajada lupine is limited in readily available sources. This is actually pretty common with some of our more specialized native plants. What we do know is that as an annual California native, it likely prefers:

  • Well-draining soils (most California natives hate soggy feet)
  • Seasonal watering patterns that mimic natural rainfall
  • Full sun to partial shade
  • Minimal fertilization (natives often prefer lean soils)

Before You Plant: Do Your Homework

Given the limited specific information available about bajada lupine’s exact growing requirements, we’d recommend connecting with local native plant societies, botanical gardens, or university extension services in California. They may have more detailed cultivation experience with this particular variety.

You might also consider starting with better-documented lupine species that are known to be garden-friendly, then experimenting with bajada lupine once you’ve mastered the general lupine growing game.

The Bottom Line

Bajada lupine represents the fascinating diversity of California’s native plant communities. While it may require a bit more detective work to grow successfully, gardeners who appreciate unique natives and want to support local biodiversity might find it a rewarding challenge. Just remember to source responsibly and consider it part of a broader native plant gardening journey rather than a quick-fix landscaping solution.

Sometimes the most rewarding plants are the ones that make us work a little harder to understand and appreciate them – and bajada lupine definitely fits that description!

Bajada Lupine

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Lupinus L. - lupine

Species

Lupinus concinnus J. Agardh - bajada lupine

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA