North America Native Plant

Longspur Lupine

Botanical name: Lupinus arbustus arbustus var. montanus

USDA symbol: LUARM4

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Lupinus laxiflorus Douglas ex Lindl. var. cognatus C.P. Sm. (LULAC6)   

Longspur Lupine: A Native Beauty for Western Gardens If you’re looking to add a touch of wild western charm to your garden, longspur lupine (Lupinus arbustus var. montanus) might just be the perfect native plant you’ve been searching for. This lovely perennial brings the classic lupine flower spikes we all ...

Longspur Lupine: A Native Beauty for Western Gardens

If you’re looking to add a touch of wild western charm to your garden, longspur lupine (Lupinus arbustus var. montanus) might just be the perfect native plant you’ve been searching for. This lovely perennial brings the classic lupine flower spikes we all adore, while supporting local ecosystems in ways that non-native plants simply can’t match.

What Makes Longspur Lupine Special?

Longspur lupine is a true native of the American West, naturally occurring across five western states. As a member of the pea family, this herbaceous perennial adds both beauty and ecological value to gardens. Unlike shrubs or trees, this lupine variety is what botanists call a forb – essentially a flowering plant that dies back to the ground each winter and returns fresh each spring.

Where Does It Call Home?

This native beauty has made itself at home across the western United States, thriving in California, Idaho, Nevada, Oregon, and Washington. Its natural range suggests it’s well-adapted to the diverse climates and growing conditions found throughout the western states, from coastal areas to mountainous regions.

Why Choose Longspur Lupine for Your Garden?

There are several compelling reasons to consider adding this native lupine to your landscape:

  • Native plant benefits: Supporting local wildlife and maintaining regional biodiversity
  • Pollinator magnet: Like other lupines, it likely attracts bees, butterflies, and other beneficial insects
  • Low maintenance: Once established, native plants typically require less water and care than non-natives
  • Authentic regional character: Adds genuine local flavor to your garden design

Perfect Garden Settings

Longspur lupine shines brightest in certain garden styles and settings:

  • Native plant gardens and naturalized landscapes
  • Wildflower meadows and prairie-style plantings
  • Xeriscaped gardens focusing on water conservation
  • Mountain or alpine-themed gardens
  • Pollinator-friendly garden spaces

Growing Your Longspur Lupine Successfully

While specific growing information for this variety is limited, lupines generally share similar care requirements. Here’s what will likely help your longspur lupine thrive:

Location and Soil

Choose a spot with well-draining soil – lupines absolutely hate wet feet! A sunny to partially shaded location should work well, mimicking the varied conditions of its natural habitat.

Hardiness and Climate

Based on its native range spanning from coastal California to mountainous regions, longspur lupine likely thrives in USDA hardiness zones 5 through 9, making it suitable for most western gardens.

Watering and Maintenance

Once established, this native should be quite drought-tolerant. Water regularly during the first growing season to help establish strong roots, then reduce watering frequency. Like most natives, it should need minimal supplemental watering once mature.

A Word of Caution

Before planting any lupine, remember that all parts of lupine plants contain alkaloids that can be toxic if consumed by humans or pets. While they’re beautiful in the garden, they’re definitely not for the dinner table!

The Bottom Line

Longspur lupine offers western gardeners an opportunity to grow a truly regional native plant that supports local ecosystems while adding natural beauty to the landscape. While specific growing information for this variety may be limited, its native status and lupine heritage suggest it could be a wonderful, low-maintenance addition to the right garden setting.

If you’re passionate about native plants and want to create habitat for local wildlife while enjoying classic lupine blooms, longspur lupine deserves a spot on your planting list. Just be sure to source your plants or seeds from reputable native plant suppliers to ensure you’re getting the genuine article!

Longspur 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 arbustus Douglas ex Lindl. - longspur lupine

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