Smallflower Hairy Willowherb

Epilobium parviflorum

Native to:
Afghanistan, Albania, Algeria, Austria, Azores, Baleares, Baltic States, Belgium, Bulgaria, Canary Is., China, Corse, Cyprus, Czechia-Slovakia, Denmark, East Aegean Is., Finland, France, Germany, Greece, Hungary, India, Iran, Iraq, Ireland, Italy, Japan, Kazakhstan, Kirgizstan, Korea, Kriti, Lebanon-Syria, Madeira, Morocco, Nepal, Netherlands, North Caucasus, Norway, NW. Balkan Pen., Pakistan, Palestine, Poland, Portugal, Romania, Russia, Sardegna, Sicilia, Spain, Sweden, Switzerland, Tadzhikistan, Transcaucasus, Tunisia, Türkiye, Türkiye-in-Europe, Turkmenistan, Uzbekistan

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Onagraceae
Genus:
Epilobium
Species:
Epilobium parviflorum
USDA Symbol:
EPPA5

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
75 cm
Light Requirements:
Full Sun
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug,sep
Bloom Colors:
pink, white

Wildlife Benefits

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

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, moths

Soil Requirements

Soil Type:
moist, nutrient-rich, well-drained soil
pH:
5.5 - 7.5 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
commonly found in damp meadows and riverbanks

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
14–28 days
Notes:
Seeds require light for germination; surface sow and do not cover.

The above propagation data sourced from Claude AI