North America Non-native Plant

Lupinus Atlanticus

Botanical name: Lupinus atlanticus

USDA symbol: LUAT

Native status: Not native but doesn't reproduce and persist in the wild

Lupinus atlanticus: The Mystery Lupine If you’ve stumbled across the botanical name Lupinus atlanticus in your gardening research, you might be scratching your head wondering what exactly this plant is. You’re not alone! This particular lupine species is quite the puzzle in the gardening world. What We Know (And Don’t ...

Lupinus atlanticus: The Mystery Lupine

If you’ve stumbled across the botanical name Lupinus atlanticus in your gardening research, you might be scratching your head wondering what exactly this plant is. You’re not alone! This particular lupine species is quite the puzzle in the gardening world.

What We Know (And Don’t Know)

Lupinus atlanticus belongs to the lupine family, a group of plants known for their distinctive pea-like flowers and palmate leaves. However, unlike its more famous cousins like the Texas Bluebonnet or Wild Lupine, this particular species remains shrouded in mystery. Current botanical databases and gardening resources provide little to no information about this plant, which raises some important questions about its validity as a recognized species.

The Geographic Mystery

The name atlanticus suggests a connection to the Atlantic region, but without reliable documentation, we can’t pinpoint where this plant might naturally occur or if it even exists as a distinct species in current taxonomy.

Should You Try to Grow It?

Here’s where things get tricky. Without reliable information about Lupinus atlanticus, including its native status, growing requirements, or even confirmation of its existence as a valid species, it’s impossible to recommend whether you should plant it or how to care for it.

If you encounter seeds or plants labeled as Lupinus atlanticus, we’d recommend proceeding with extreme caution. The lack of available information could mean:

  • It’s an outdated or invalid species name
  • It’s a regional common name being used incorrectly
  • It’s an extremely rare species with limited documentation
  • It could be mislabeled entirely

Better Lupine Alternatives

Instead of chasing this botanical ghost, consider these well-documented and widely available lupine species that can bring beauty and ecological benefits to your garden:

  • Wild Lupine (Lupinus perennis) – native to eastern North America
  • Large-leaved Lupine (Lupinus polyphyllus) – though non-native, widely cultivated
  • Arroyo Lupine (Lupinus succulentus) – native to California
  • Sundial Lupine (Lupinus perennis) – excellent for supporting specialized butterflies

The Bottom Line

While the mystery of Lupinus atlanticus remains unsolved, there are plenty of other lupine species with proven track records that can provide the same spiky flower beauty and nitrogen-fixing benefits in your garden. When in doubt, stick with well-documented native species that will reliably support local ecosystems and pollinators.

If you have any information about Lupinus atlanticus or have encountered this plant in the wild, we’d love to hear from you! Sometimes the gardening community can help solve these botanical mysteries together.

Lupinus Atlanticus

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 atlanticus Gladst.

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