Earth-Nut

Bunium bulbocastanum

Native to:
Baleares, Belgium, France, Germany, Greece, Italy, Netherlands, NW. Balkan Pen., Sardegna, Sicilia, Switzerland

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Apiaceae
Genus:
Bunium
Species:
Bunium bulbocastanum
USDA Symbol:
BUBU4

Growth Characteristics

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

Garden & Ecology Notes

Wildlife Value:
bees, beneficial insects
Deer Resistant:
Yes
Fragrant:
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:
native to regions with well-drained soils

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Germination Time:
14–42 days
Notes:
Seeds germinate best with cold stratification and may have erratic germination. Fresh seed germinates more readily.

The above propagation data sourced from Claude AI

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

Source: Ontario Rock Garden & Hardy Plant Society