Wild Blue Lupine is a striking native wildflower of sandy, acidic soils in the northeastern and midwestern United States, producing tall spikes of blue-to-purple pea flowers. It is the exclusive larval host plant for the Karner blue butterfly, an endangered species. Its populations have declined significantly with the loss of sandplain habitats.
Best time to see a Wild Blue Lupine
The best time to see a Wild Blue Lupine is May–June, when about 70% of U.S. sightings happen, based on 10,550 research-grade iNaturalist observations.
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Recent Wild Blue Lupine sightings near you
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