Epilobium fleischeri — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Epilobium fleischeri

Epilobium Fleischeri

Updated · 41 observations
ON THIS PLANT

Chamaenerion fleischeri, formerly Epilobium fleischeri, commonly known as Alpine willowherb, is a herbaceous perennial plant of the family Onagraceae.

A note from PlantMom

Willowherb is relatively resistant to disease and typically does not contract illnesses easily. Nevertheless, it can be affected by pests and diseases present in its environment. These problems are generally mild. For care, this plant needs a moderate level of maintenance. It should be pruned routinely to keep a tidy appearance and support healthy growth. Feeding it with fertilizer can also encourage flowering. Willowherb is appropriate for anyone who has outdoor space, such as a garden or patio, and does not demand much prior experience in plant care. It may require more attention when grown indoors.

— PlantMom
CARE GUIDE

How to keep Epilobium Fleischeri.

Light

Willowherb is a sun-loving perennial herbaceous plant native to open habitats and commonly thrives in meadows and grasslands. It prefers full sun but can also tolerate partial sun.

Water

Willowherb flourishes in moist environments, as it prefers well-hydrated soil. To keep it healthy, it needs to be watered weekly. It also benefits from the natural rain cycles, which offer varying moisture levels throughout the seasons, supporting its growth.

Fertilizer

For Willowherb, the primary time to fertilize is early spring, when flowers are beginning to form. The appropriate fertilizer promotes better blooms and helps Willowherb produce attractive flowers. Fertilizing in early spring ensures strong flowering throughout the season and supplies energy for dormant growth phases.

Pruning

Willowherb is known for its slender stems and vibrant pink flowers. To encourage better blooms and maintain plant health, it is important to prune it from early to late spring. During this time, remove any spent flowers and weak growth. Thinning the plant helps improve air circulation and reduces the risk of disease. Always use clean, sharp tools when pruning to avoid damaging the plant and to ensure its overall health.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Perennial
Genus
Epilobium
Family
Onagraceae
Hardiness Zone
4-8
Mature Height
10 cm to 40 cm
Mature Spread
20 cm to 49 cm
Leaf Color
Green, Dark Green
Leaf Type
Deciduous
Flower Color
Pink
Flower Size
1.52 cm to 2.54 cm
Bloom Time
Summer
Planting Time
Spring
Harvest Time
Late summer, Early fall, Mid fall
ALSO KNOWN AS

Other names.

en Alpine fireweed en Alpine willowherb
PLATES
Epilobium fleischeri leaf
PLATE 01 · leaf
Epilobium fleischeri leaf
PLATE 02 · leaf
Epilobium fleischeri flower
PLATE 03 · flower
Epilobium fleischeri flower
PLATE 04 · flower
ALSO IN THE LIBRARY

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