North America Native Plant

Drew’s Silky Lupine

Botanical name: Lupinus adsurgens var. adsurgens

USDA symbol: LUADA

Life cycle: perennial

Habit: subshrub

Native status: Native to the lower 48 states  

Synonyms: Lupinus debilis Eastw. (LUDE8)  âš˜  Lupinus debilis Greene ex C.F. Baker, non Eastw. (LUDE9)  âš˜  Lupinus pendletonii A. Heller (LUPE8)   

Drew’s Silky Lupine: A Beautiful Native Wildflower for Western Gardens If you’re looking to add some genuine wild beauty to your garden while supporting native ecosystems, Drew’s silky lupine (Lupinus adsurgens var. adsurgens) might just be the perfect addition. This charming perennial brings the classic appeal of lupine flowers to ...

Rare plant alert!

Region: Conservation status by state

Status: S5T3T4: Status is uncertain but is somewhere between the following rankings: 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. ⚘ Subspecies or varieties is apparently secure: Uncommon but not rare, and usually widespread. Possibly cause for longterm concern. Typically more than 100 occurrences in the region or more than 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. ⚘

Drew’s Silky Lupine: A Beautiful Native Wildflower for Western Gardens

If you’re looking to add some genuine wild beauty to your garden while supporting native ecosystems, Drew’s silky lupine (Lupinus adsurgens var. adsurgens) might just be the perfect addition. This charming perennial brings the classic appeal of lupine flowers to gardens across the western United States, offering both visual interest and valuable habitat for local wildlife.

What Makes Drew’s Silky Lupine Special?

Drew’s silky lupine is a native herbaceous perennial that belongs to the pea family. Like other lupines, it produces distinctive spikes of blue to purple pea-like flowers that rise above attractive palmate leaves. The silky in its name refers to the soft, fine hairs that often cover the plant’s stems and leaves, giving it a subtle silvery appearance that catches the light beautifully.

As a true native species, this lupine has evolved alongside local ecosystems for thousands of years. It’s perfectly adapted to western growing conditions and provides resources that native wildlife have come to depend on.

Where Does It Grow Naturally?

Drew’s silky lupine calls California and Oregon home, where it typically grows in montane and subalpine regions. You’ll find it thriving in areas with well-draining soils and plenty of sunshine, from foothills to mountain meadows.

Why Consider Planting Drew’s Silky Lupine?

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

  • Pollinator magnet: The flowers attract bees, butterflies, and other beneficial insects
  • Low maintenance: Once established, it’s quite drought tolerant and requires minimal care
  • Soil improvement: Like other legumes, lupines fix nitrogen in the soil, actually improving growing conditions
  • Authentic beauty: Nothing beats the natural charm of a plant that truly belongs in your local ecosystem
  • Seasonal interest: Provides both attractive foliage and showy flower spikes

Important Conservation Note

Before you rush out to plant Drew’s silky lupine, there’s something important to know. This variety has a conservation status that suggests it may be somewhat rare or declining in parts of its range. This doesn’t mean you shouldn’t grow it – quite the opposite! Growing native plants in gardens can actually help support conservation efforts. However, it does mean you should be mindful about sourcing.

Always purchase seeds or plants from reputable native plant nurseries that propagate their own stock rather than collecting from wild populations. This ensures you’re supporting conservation rather than potentially harming wild stands.

Growing Conditions and Care

The good news is that Drew’s silky lupine isn’t particularly fussy once you understand its preferences:

  • Sunlight: Full sun to partial shade (at least 6 hours of direct sunlight daily)
  • Soil: Well-draining soils; tolerates poor, rocky, or sandy conditions
  • Water: Moderate water during establishment, then quite drought tolerant
  • Climate: Hardy in USDA zones 5-9, depending on your specific location

Planting and Establishment Tips

Getting lupines started can be a bit tricky, but these tips will help ensure success:

  • Seed treatment: Lupine seeds have hard coats that benefit from scarification (lightly scratching or filing) before planting
  • Timing: Fall planting often works best, allowing natural winter stratification
  • Direct seeding: Lupines generally prefer to be direct seeded rather than transplanted
  • Patience: Don’t expect immediate results – lupines often take time to establish but are worth the wait
  • Avoid fertilizer: These nitrogen-fixers don’t need rich soil and may actually struggle in overly fertile conditions

Perfect Garden Companions

Drew’s silky lupine plays well with other native western plants. Consider pairing it with native grasses, penstemon, Indian paintbrush, or other wildflowers that share similar growing requirements. It’s particularly stunning in naturalized areas, native plant gardens, or xeric landscapes where its drought tolerance really shines.

The Bottom Line

Drew’s silky lupine offers gardeners a chance to grow a truly special native plant that supports local ecosystems while providing beautiful flowers and interesting texture. While it may require a bit of patience during establishment and careful sourcing due to conservation concerns, the reward is a resilient, attractive perennial that connects your garden to the wild landscapes of the American West.

Remember, when you choose native plants like Drew’s silky lupine, you’re not just decorating your garden – you’re participating in conservation and creating habitat for the creatures that call your region home. Now that’s gardening with purpose!

Drew’s Silky 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 adsurgens E. Drew - Drew's silky lupine

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