Type: Perennial (Zones 4-8) • Family: Fabaceae (Legume) • Sun: Full sun • Water: Low to moderate • Soil pH: 5.0-6.5 • Hardiness: Native—thrives in WV, especially in acid soils
Growing Blue Lupine in your area
Wild blue lupine (Lupinus perennis) is a stunning native perennial with spikes of blue-violet flowers. It is the sole host plant for the endangered Karner blue butterfly. Plant from seed (scarify and stratify) in fall or spring. Space 12-18" apart. Prefers acidic, sandy, well-drained soil—common in WV. Fixes nitrogen. Beautiful in meadow plantings and native gardens. DO NOT confuse with ornamental Russell lupines (L. polyphyllus)—those are non-native and can be invasive. Wild blue lupine is ecologically important and declining in much of its range.
Recommended Varieties
'Wild Blue Lupine (L. perennis)'
The native wild blue lupine. Essential for Karner blue butterfly. Blue-violet flower spikes. Acid soil loving. Declining in the wild—plant it to help.
'Sundial Lupine (L. perennis)'
Another name for the same species. Palmate leaves track the sun (heliotropism). Very ornamental. Ecologically significant.
Cultural History
Wild lupine is native to eastern North America and has significant ecological importance. Indigenous peoples used lupine for various purposes. The Karner blue butterfly's dependence on wild lupine is one of the best-known plant-insect coevolution stories. Habitat loss has fragmented lupine populations, threatening the butterfly. Conservation planting of wild lupine is a tangible way to support biodiversity in WV.
Seed Saving
Seed saving varies by species.
The Loop Farmstead Standard
- Compost: 1-2 inches annually (on-farm production)
- Cover crops: Rye + vetch (fall), buckwheat (summer), daikon (compaction)
- Wood chips: Pathways only (aged 2+ years for beds)
- Biochar: Charged with compost tea (permanent carbon)
- Wood ash: Light application from wood stove
Never used: Synthetic fertilizers, mined minerals, gypsum, peat moss