Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Fabaceae

Genus:

Orbexilum

Species:

Orbexilum stipulatum

USDA Symbol:

ORST

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

60 cm

Light Requirements:

Full Sun

Drought Tolerance:

Low

Bloom Months:

may,jun,jul

Bloom Colors:

purple, violet

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:

bees, butterflies

Soil Requirements

Soil Type:

rocky, well-drained limestone soil

pH:

6.0 - 7.5 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

endemic to limestone glades in Kentucky

Propagation & Germination

Stratification:

Cold/moist stratification required — 60–90 days

Scarification:

Seed coat scarification required before sowing

Germination Time:

14–42 days

Notes:

Seed coat is hard; scarification improves germination. Cold stratification after scarification is recommended.

The above propagation data sourced from Claude AI