Narrowleaf Hempnettle

Galeopsis angustifolia

Native to:
Austria, Belgium, Bulgaria, Czechia-Slovakia, Denmark, France, Germany, Italy, Morocco, Netherlands, NW. Balkan Pen., Poland, Romania, Spain, Switzerland

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Lamiaceae
Genus:
Galeopsis
Species:
Galeopsis angustifolia
USDA Symbol:
GAAN5

Growth Characteristics

Life Cycle:
Annual
Growth Habit:
Forb/herb
Height:
50 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
jun,jul,aug,sep
Bloom Colors:
pink, purple, white

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies

Soil Requirements

Soil Type:
sandy, nutrient-poor, well-drained soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
prefers open, sunny habitats

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–28 days
Notes:
Seeds germinate best with light exposure and cool temperatures.

The above propagation data sourced from Claude AI