Tennessee Gladecress

Leavenworthia exigua

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Brassicaceae
Genus:
Leavenworthia
Species:
Leavenworthia exigua
USDA Symbol:
LEEX

Growth Characteristics

Life Cycle:
Annual
Growth Habit:
Forb/herb
Height:
15 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
mar,apr,may
Bloom Colors:
white, yellow

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)

Garden & Ecology Notes

Wildlife Value:
bees

Soil Requirements

Soil Type:
rocky, well-drained limestone soil
pH:
6.0 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
often found in glades and rocky outcrops

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–30 days
Notes:
Seeds germinate in fall or early spring in nature; cool temperatures preferred.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds are placed into warm stratification

Source: npn.rngr.net

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.

Source: Ontario Rock Garden & Hardy Plant Society