North America Native Plant

Sicklekeel Lupine

Botanical name: Lupinus albicaulis var. albicaulis

USDA symbol: LUALA

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Lupinus falcifer Nutt. ex Torr. & A. Gray, nom. inval. (LUFA5)  âš˜  Lupinus quercetorum A. Heller (LUQU)  âš˜  Lupinus wolfianus C.P. Sm. (LUWO)   

Sicklekeel Lupine: A Charming Native Annual for Western Gardens If you’re looking to add a touch of wild beauty to your garden while supporting local ecosystems, sicklekeel lupine (Lupinus albicaulis var. albicaulis) might just be the perfect addition to your native plant collection. This delightful little annual brings color, ecological ...

Sicklekeel Lupine: A Charming Native Annual for Western Gardens

If you’re looking to add a touch of wild beauty to your garden while supporting local ecosystems, sicklekeel lupine (Lupinus albicaulis var. albicaulis) might just be the perfect addition to your native plant collection. This delightful little annual brings color, ecological benefits, and that wonderfully untamed look that makes gardens feel more connected to nature.

What Makes Sicklekeel Lupine Special?

Sicklekeel lupine is a true native of the American West, naturally occurring across California, Oregon, and Washington. As a member of the lupine family, it shares the characteristic pea-like flowers arranged in attractive spikes, typically displaying lovely shades of blue to purple that seem to capture the essence of western skies.

What sets this particular lupine apart is right there in its name – those distinctive sickle-shaped seed pods that follow the flowers. It’s these curved pods that give the plant its sicklekeel moniker, and they add an interesting textural element even after the blooming season ends.

Why Your Garden (and Local Wildlife) Will Love It

There are plenty of reasons to welcome sicklekeel lupine into your outdoor space:

  • Pollinator magnet: Like other lupines, this species is a fantastic attractor of bees, butterflies, and other beneficial pollinators
  • Soil improvement: As a member of the legume family, it naturally fixes nitrogen in the soil, actually improving growing conditions for neighboring plants
  • Low maintenance: Being an annual native, it’s perfectly adapted to local conditions and requires minimal care once established
  • Natural look: Perfect for creating that wild, meadow-like appearance that’s so popular in contemporary native landscaping

Where Does Sicklekeel Lupine Fit in Your Landscape?

This charming annual works beautifully in several garden settings:

  • Wildflower meadows: Mix it with other native annuals and perennials for a naturalistic display
  • Xeriscaped areas: Its drought tolerance makes it perfect for water-wise gardens
  • Native plant gardens: An excellent choice for gardens focused on regional flora
  • Naturalized edges: Great for transitional areas between cultivated and wild spaces

Growing Sicklekeel Lupine Successfully

The beauty of native plants is that they’re already perfectly adapted to thrive in their home regions. Here’s how to help sicklekeel lupine flourish in your garden:

Ideal Growing Conditions

Sicklekeel lupine appreciates conditions similar to its natural habitat:

  • Sunlight: Full sun is preferred, though it can tolerate some light shade
  • Soil: Well-draining soil is essential – this plant doesn’t appreciate wet feet
  • Water: Once established, it’s quite drought-tolerant and actually prefers drier conditions
  • Climate: Suitable for USDA hardiness zones 7-10, matching its native range

Planting and Care Tips

Getting started with sicklekeel lupine is refreshingly straightforward:

  • When to plant: Fall sowing is ideal, allowing natural winter stratification
  • Seeding: Direct sow seeds in the garden rather than starting transplants
  • Spacing: Give plants room to spread naturally – overcrowding can lead to issues
  • Watering: Water gently during germination, then reduce as plants establish
  • Maintenance: Minimal care needed – let it self-seed for natural regeneration

A Few Things to Keep in Mind

While sicklekeel lupine is generally easy-going, there are a few considerations:

  • As an annual, you’ll need to allow it to self-seed or replant each year
  • Like many lupines, the seeds and plants contain alkaloids and shouldn’t be consumed
  • It may take a season or two to establish a good population from seed

The Bottom Line

Sicklekeel lupine offers that perfect combination of beauty, ecological value, and low maintenance that makes it a winner for western gardens. Whether you’re creating a wildflower meadow, adding to an existing native plant collection, or simply wanting to support local pollinators, this charming annual brings authenticity and natural grace to any landscape. Plus, there’s something deeply satisfying about growing plants that truly belong in your region – it’s gardening that feels right with the natural world.

Sicklekeel 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 albicaulis Douglas - sicklekeel lupine

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