European Stoneseed

Lithospermum officinale

Native to:
Afghanistan, Albania, Austria, Baleares, Baltic States, Belarus, Belgium, Bulgaria, China, Corse, Czechia-Slovakia, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, India, Iran, Ireland, Italy, Kazakhstan, Kirgizstan, Krym, Nepal, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Poland, Portugal, Romania, Russia, Sardegna, Sicilia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Türkiye, Türkiye-in-Europe, Turkmenistan, Ukraine, Uzbekistan

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Boraginaceae
Genus:
Lithospermum
Species:
Lithospermum officinale
USDA Symbol:
LIOF

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
100 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun,jul,aug
Bloom Colors:
white, cream, yellow

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Ethmia longimaculella

Garden & Ecology Notes

Wildlife Value:
birds
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 calcareous soils in native habitats

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Germination Time:
14–60 days
Notes:
Seeds have hard nutlets and may germinate erratically. Cold stratification improves germination rates.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months. Requires light / surface sow (fine seed). | GA3 improves germination.

Source: Ontario Rock Garden & Hardy Plant Society