North America Native Plant

Plumas Lupine

Botanical name: Lupinus onustus

USDA symbol: LUON

Life cycle: perennial

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Lupinus mucronulatus Howell (LUMU4)  âš˜  Lupinus oreganus A. Heller var. pusillulus C.P. Sm. (LUORP)  âš˜  Lupinus pinetorum M.E. Jones, non A. Heller (LUPI7)  âš˜  Lupinus sulphureus Douglas ex Hook. ssp. delnortensis (Eastw.) L. Phillips (LUSUD)  âš˜  Lupinus thompsonianus C.P. Sm. (LUTH)  âš˜  Lupinus violaceus A. Heller (LUVI4)  âš˜  Lupinus violaceus A. Heller var. delnortensis Eastw. (LUVID3)  âš˜  Lupinus violaceus A. Heller var. shastensis Eastw. (LUVIS)   

Plumas Lupine: A Lesser-Known Native Beauty for Mountain Gardens If you’re looking to add some wild beauty to your native garden, you might want to get acquainted with Plumas lupine (Lupinus onustus). This perennial wildflower is one of those delightful hidden gems in the lupine family that doesn’t get nearly ...

Plumas Lupine: A Lesser-Known Native Beauty for Mountain Gardens

If you’re looking to add some wild beauty to your native garden, you might want to get acquainted with Plumas lupine (Lupinus onustus). This perennial wildflower is one of those delightful hidden gems in the lupine family that doesn’t get nearly the attention it deserves. While it may not be as well-known as its showier cousins, this California and Oregon native has its own unique charm that makes it worth considering for the right garden setting.

What Makes Plumas Lupine Special?

Plumas lupine is a true native of the American West, calling the mountainous regions of California and Oregon home. As a perennial forb, it returns year after year, developing a deeper root system that helps it thrive in challenging mountain conditions. Like other lupines, it produces the characteristic spikes of purple-blue flowers that make such a stunning display when planted in groups.

What sets this species apart is its adaptation to higher elevation environments. While many gardeners are familiar with more common lupines, Plumas lupine has evolved specifically for the unique conditions found in its native mountain habitats.

Where Does Plumas Lupine Grow Naturally?

This lovely lupine is native to California and Oregon, where it thrives in mountainous terrain. Its natural range gives us important clues about the kind of conditions it prefers in cultivation.

Why Consider Plumas Lupine for Your Garden?

There are several compelling reasons to add this native beauty to your landscape:

  • True native credentials: Supporting local ecosystems by choosing plants that evolved in your region
  • Perennial reliability: Once established, it returns year after year
  • Pollinator support: Like other lupines, it likely provides nectar and pollen for native bees and butterflies
  • Low maintenance: Adapted to local conditions means less fussing once established
  • Unique garden character: Adds authentic wildflower appeal to naturalized areas

Best Garden Settings for Plumas Lupine

This lupine works particularly well in:

  • Native plant gardens
  • Wildflower meadows
  • Mountain or rock gardens
  • Naturalized landscape areas
  • Wildlife-friendly gardens

It’s probably not the best choice for formal, manicured landscapes, but it shines in more relaxed, natural settings where its wild character can be appreciated.

Growing Conditions and Care

While specific cultivation information for Plumas lupine is limited, we can make educated guesses based on its native habitat and what we know about lupines in general:

Soil: Well-draining soil is essential. Like most lupines, it probably prefers slightly acidic to neutral pH and doesn’t appreciate overly rich, fertilized conditions.

Sun exposure: Full sun to partial shade, typical for mountain wildflowers.

Water needs: Once established, it should be quite drought tolerant, reflecting its adaptation to mountain conditions where water can be scarce.

Hardiness: Based on its native range, it likely thrives in USDA zones 5-8, though this varies depending on your specific microclimate.

Planting and Establishment Tips

Since detailed growing information is scarce for this particular species, here are some general guidelines based on lupine family characteristics:

  • Start with seeds if possible, as lupines often don’t transplant well due to their deep taproots
  • Scarify seeds before planting to improve germination
  • Plant in fall for spring germination, mimicking natural cycles
  • Avoid overwatering once established
  • Don’t fertilize heavily – lupines actually prefer lean soils

A Word of Caution: Limited Availability

Here’s where things get a bit tricky. Plumas lupine isn’t commonly available in the nursery trade, which means finding seeds or plants might require some detective work. This limited availability might be due to its specialized habitat requirements or simply because it hasn’t gained popularity among growers yet.

If you’re interested in growing this species, your best bet is to contact native plant societies in California or Oregon, or specialized native plant nurseries that focus on regional flora.

The Bottom Line

Plumas lupine represents one of those wonderful native plants that deserves more attention from adventurous gardeners. While we don’t have all the cultivation details figured out yet, its native status and perennial nature make it an intriguing choice for gardeners in its native range who want to support local ecosystems.

If you can get your hands on seeds or plants, it’s worth experimenting with in a naturalized area of your garden. Just remember that success with lesser-known natives often requires patience and a willingness to work with the plant’s natural tendencies rather than against them.

Sometimes the most rewarding garden plants are the ones that make you work a little harder to understand them. Plumas lupine might just be one of those special discoveries that transforms a corner of your garden into something truly unique.

Plumas 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 onustus S. Watson - Plumas lupine

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