Pimpernel Willowherb
Epilobium anagallidifolium
- Native to:
- Albania, Aleutian Is., Austria, Bulgaria, Canada, China, Corse, Czechia-Slovakia, Finland, Føroyar, France, Germany, Greece, Greenland, Iceland, India, Italy, Japan, Kuril Is., Labrador, North Caucasus, Norway, NW. Balkan Pen., Poland, Portugal, Romania, Russia, Spain, Svalbard, Sweden, Switzerland, Transcaucasus, Türkiye, Ukraine, United States
iNaturalist: © jandolezal (iNaturalist #191765299)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Onagraceae
- Genus:
- Epilobium
- Species:
- Epilobium anagallidifolium
- USDA Symbol:
- EPAN4
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 15 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- pink, purple
- Ground Cover:
- Yes
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies
Soil Requirements
- Soil Type:
- moist, well-drained, nutrient-rich soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- consistently moist
- Notes:
- Commonly found in alpine and subalpine regions
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–28 days
- Notes:
- Seeds require light for germination. Surface sow and keep moist.
The above propagation data sourced from Claude AI
Pre-treatment: 5 month outdoor stratification
Establishment: Seeds are hand collected in mid August when loculicidal capsules begin to split. Seeds are gray at maturity. Capsules are collected in paper bags and kept in a well ventilated drying shed prior to cleaning.
Source: npn.rngr.net