Pimpernel willowherb (Epilobium anagallidifolium)

Pimpernel willowherb

Also known as: Pimpernel-leaved willowherb

Pimpernel willowherb (Epilobium anagallidifolium) is a wildflower that you may see in cold northern boreal habitats and alpine and subalpine mountain locations further towards the south. This plant is a useful addition to any garden because it attracts hummingbirds, butterflies and other pollinating insects with its small trumpet-shaped flowers.

Scientific classification

Species

Pimpernel willowherb (Epilobium anagallidifolium)

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Perennial

Lifespan

Herb

Plant Type

Spring, Summer

Bloom Time

5 cm to 20 cm

Plant Height

20 cm to 30 cm

Spread

2.5 cm

Flower Size

White, Purple, Red

Flower Color

Images of Pimpernel willowherb

Distribution of Pimpernel willowherb

Distribution Map

Pimpernel willowherb is naturally found across a broad expanse, ranging from the arctic and alpine regions of the Northern Hemisphere to parts of temperate Asia. Its native habitat encompasses a variety of environments within the continents of Europe and Asia, as well as extending to the colder climates of North America.

Native

Cultivated

Invasive

Introduced

No species reported

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Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Pimpernel willowherb

Every week

Water

Full sun

Sunlight

0 - 35 ℃

Ideal Temperature

Water: Originating from moist environments, pimpernel willowherb thrives in high humidity and prefers consistent moisture, showing moderate drought tolerance. Watering should occur weekly to maintain hydration, and it is typically cultivated outdoors to benefit from natural rainfall during its active growth season.

Fertilize: Fertilize pimpernel willowherb monthly with half-strength balanced nutrition during growth to enhance growth and flowering. Reduce feeding during dormancy, dispersing fertilizer evenly at the base. Regular feeding ensures pimpernel willowherb remains vigorous and adapts to seasonal changes while preventing root damage from over-fertilization.

Pruning: Prune pimpernel willowherb in early to late spring to remove dead stems and leggy growth, promoting denser foliage and blooms. This practice encourages air circulation, reduces disease risk, and maintains the plant's health and vibrancy throughout its growth cycle.

Propagation: Pimpernel willowherb thrives in well-draining soil that retains moisture. For propagation, use healthy, non-flowering cuttings, optionally aided by rooting hormone. Provide bright, indirect light and maintain moist soil. Gradually acclimatize rooted plants to outdoor conditions before final transplantation.

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Learn More About Pimpernel willowherb

Sunlight Requirements

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