Lithospermum

Lithospermum erythrorhizon

Native to:
China, Japan, Korea, Russia

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Boraginaceae
Genus:
Lithospermum
Species:
Lithospermum erythrorhizon
USDA Symbol:
LIER

Growth Characteristics

Height:
60 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
jun,jul,aug
Bloom Colors:
white

Garden & Ecology Notes

Wildlife Value:
bees
Deer Resistant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
prefers sunny, open areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Germination Time:
14–42 days
Notes:
Seeds may exhibit irregular germination; cold stratification improves germination rates.

The above propagation data sourced from Claude AI