Thermopsis villosa
Thermopsis villosa is a bold native perennial that produces tall upright spikes of golden yellow lupine like flowers in late spring to early summer. Its deep green, clumping foliage forms a strong structural base while the bright blooms rise above it creating a striking meadow style accent in sunny plantings while supporting seasonal pollinator activity.
Height & Spread: 36 - 60 in x 24 - 36 in
Bloom Time: Late spring to early summer
Light Requirements: Full sun
Soil Preference: Average to well drained soil
Watering Needs: Low to moderate; drought tolerant once established
Deer Resistance: Deer resistant
Native Status
This species is native to the southeastern United States where it naturally grows in open woodlands and meadow edges and contributes nitrogen to surrounding soils as a member of the legume family.
WILDLIFE & INSECTS
Bees
- Highly attractive to native bees and bumblebees which forage heavily on the abundant nectar rich flower spikes during late spring bloom.
Butterflies
- Draws a range of butterflies including swallowtails and sulphurs which visit the tall yellow blooms for nectar in open sunny conditions.
Spacing & Landscape Use
Spacing Recommendations
- Space 24 - 36 in apart to allow full upright development and prevent crowding in naturalized plantings.
Landscape Placement
- Best used in meadow gardens, native plantings, and sunny borders where its vertical flower spikes create strong seasonal structure and visual impact.
Companion Plants
- Schizachyrium scoparium (Little Bluestem) - Adds fine textured native grass structure and warm seasonal color contrast.
- Echinacea purpurea (Purple Coneflower) - Extends pollinator value into summer with strong upright blooms.
- Rudbeckia fulgida 'Goldsturm' (Black Eyed Susan) - Reinforces bright golden color themes in midsummer plantings.
- Calamagrostis acutiflora 'Karl Foerster' (Feather Reed Grass) - Provides vertical architectural contrast and season long structure.
- Coreopsis verticillata 'Zagreb' (Threadleaf Coreopsis) - Adds fine foliage texture and long lasting yellow bloom coverage.