North America Native Plant

Whitewhorl Lupine

Botanical name: Lupinus densiflorus var. lacteus

USDA symbol: LUDEL

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Lupinus arenicola A. Heller (LUAR12)  âš˜  Lupinus densiflorus Benth. var. altus C.P. Sm. (LUDEA5)  âš˜  Lupinus densiflorus Benth. var. dudleyi C.P. Sm. (LUDED2)  âš˜  Lupinus densiflorus Benth. var. latidens C.P. Sm. (LUDEL3)  âš˜  Lupinus densiflorus Benth. ssp. lacteus (Kellogg) R.M. Beauch. (LUDEL4)  âš˜  Lupinus densiflorus Benth. var. mcgregorii C.P. Sm. (LUDEM2)  âš˜  Lupinus densiflorus Benth. var. persecundus C.P. Sm. (LUDEP3)  âš˜  Lupinus densiflorus Benth. var. sublanatus C.P. Sm. (LUDES2)  âš˜  Lupinus densiflorus Benth. var. vastiticola C.P. Sm. (LUDEV)  âš˜  Lupinus densiflorus Benth. var. versatabilis C.P. Sm. (LUDEV2)   

Whitewhorl Lupine: A Charming California Native for Your Garden Meet the whitewhorl lupine (Lupinus densiflorus var. lacteus), a delightful California native that’s ready to add a touch of wild beauty to your garden. This charming annual wildflower might not be the showiest plant on the block, but what it lacks ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3?Q: Status is uncertain but is somewhere between the following rankings: Inexact rank: ⚘ Uncertain taxonomy: ⚘ 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. ⚘

Whitewhorl Lupine: A Charming California Native for Your Garden

Meet the whitewhorl lupine (Lupinus densiflorus var. lacteus), a delightful California native that’s ready to add a touch of wild beauty to your garden. This charming annual wildflower might not be the showiest plant on the block, but what it lacks in drama, it more than makes up for in ecological value and understated elegance.

What Makes Whitewhorl Lupine Special?

As a true California native, whitewhorl lupine has been gracing the Golden State’s landscapes long before any of us were around. This herbaceous annual belongs to the legume family, which means it has the superpower of fixing nitrogen in the soil – basically, it’s like having a tiny soil improvement factory right in your garden!

The plant gets its common name from its distinctive white to cream-colored flowers that arrange themselves in whorled patterns around the stem, creating an almost architectural look that’s both structured and wild. The palmate leaves (think of them as nature’s little hands) add textural interest throughout the growing season.

Where Does It Grow?

Whitewhorl lupine calls California home, where it naturally occurs throughout various regions of the state. From coastal areas to inland valleys, this adaptable native has learned to thrive in California’s diverse microclimates.

Why Consider Whitewhorl Lupine for Your Garden?

If you’re gardening in California and looking to support local ecosystems, whitewhorl lupine deserves a spot on your consideration list. Here’s why:

  • Pollinator magnet: Like other lupines, this species attracts bees, butterflies, and other beneficial insects
  • Soil improvement: As a legume, it naturally enriches your soil with nitrogen
  • Low maintenance: Once established, it’s quite drought-tolerant
  • Authentic habitat: Helps recreate natural California plant communities

A Word About Rarity

It’s worth noting that whitewhorl lupine has an unclear conservation status. While this doesn’t mean it’s endangered, it’s always wise to source your plants or seeds from reputable native plant nurseries that practice responsible collection methods. This ensures you’re not inadvertently impacting wild populations.

Growing Whitewhorl Lupine Successfully

Ready to give this California native a try? Here’s what you need to know:

Ideal Growing Conditions

  • Sunlight: Full sun to partial shade
  • Soil: Well-draining soil is essential – these plants hate wet feet
  • Water: Drought-tolerant once established, but appreciates some water during germination
  • Climate zones: Best suited for USDA zones 8-10

Planting and Care Tips

Since whitewhorl lupine is an annual, you’ll need to replant it each year (or let it self-seed if conditions are right). Here’s how to get started:

  • Timing: Plant seeds in fall for spring blooms
  • Seed preparation: Scarify seeds lightly or soak overnight to improve germination
  • Planting depth: Plant seeds about 1/4 inch deep
  • Spacing: Allow 6-12 inches between plants
  • Maintenance: Very low maintenance once established – just occasional watering during dry spells

Perfect Garden Companions

Whitewhorl lupine plays well with other California natives. Consider pairing it with poppies, clarkias, and native grasses for a authentic wildflower meadow look. It’s particularly well-suited for:

  • Native plant gardens
  • Wildflower meadows
  • Drought-tolerant landscapes
  • Naturalized areas

The Bottom Line

While whitewhorl lupine might not be the flashiest plant in the native plant world, it’s a solid choice for California gardeners who want to support local ecosystems while enjoying a pretty, low-maintenance annual. Its nitrogen-fixing abilities make it a good neighbor to other plants, and its flowers provide valuable resources for pollinators.

Just remember to source your seeds responsibly, and don’t be surprised if this understated beauty starts to grow on you. Sometimes the most rewarding garden plants are the ones that whisper rather than shout!

Whitewhorl 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 densiflorus Benth. - whitewhorl lupine

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