Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Fabaceae

Genus:

Thermopsis

Species:

Thermopsis gracilis

USDA Symbol:

THGR6

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

60 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

may,jun,jul

Bloom Colors:

yellow

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Reported Fauna Sightings

Garden & Ecology Notes

Wildlife Value:

bees, butterflies

Deer Resistant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from rhizomes following fire; typical of mountain meadow species adapted to periodic disturbance.

Soil Requirements

Soil Type:

well-drained, sandy or gravelly soil

pH:

5.5 - 7.5 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

prefers open, sunny habitats

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Scarification:

Seed coat scarification required before sowing

Germination Time:

14–42 days

Notes:

Scarification of hard seed coat recommended; cold stratification improves germination rates.

The above propagation data sourced from Claude AI