Licorice Fern (Polypodium glycyrrhiza) is a deciduous fern native to the Pacific Northwest and Alaska, extending south to California and eastward into Idaho and Kamchatka. Thriving in moist environments with partial sun to full shade, this fern is commonly found in forested areas, adding a touch of natural beauty to the understory. Known for its edible roots, which have a sweet, licorice-like flavor, it is often sought after by foragers. The fronds are typically 0.5 meters tall and light green in color, making it easily recognizable. The plant is hardy in zones 6-9 and can be propagated through root division in spring. Traditionally, Licorice Fern has been used in Native American medicine for digestive issues, often prepared as a decoction to soothe the stomach and aid digestion. It is also used to support the immune system, traditionally prepared as a tea or decoction during cold and flu season. While the roots are edible, caution should be exercised when consuming any wild plant, as proper identification is crucial.
Licorice Fern (Polypodium glycyrrhiza) is a deciduous fern native to the Pacific Northwest and Alaska, extending south to California and eastward into Idaho and Kamchatka.
Traditionally used for digestion, immune support. Each claim is evidence-rated — see Section II for full citations.
The mechanism is not fully characterised but may involve compounds similar to those found in other fern species that have anti-inflammatory properties.
The mechanism is not fully characterised but may involve compounds with antioxidant properties that help modulate the immune response.
Start with a simple setup to grow Licorice Fern, focusing on basic care and maintenance.
A small Licorice Fern plant or spores, a pot, well-draining soil, and water.
Plant in spring when the weather starts warming up.
Use a mix of light (sandy), medium, or heavy clay soil with good drainage. Ensure your pot has holes for water to escape.
Transplant the Licorice Fern into its new pot gently, making sure not to damage the roots.
Keep the soil moist but not soggy. Place it in a partially shaded area to acclimate.
Place the fern in partial shade and water when the top inch of soil feels dry. Avoid overwatering.
Prune any dead or yellowing fronds to maintain a healthy appearance.
Overwatering, placing in full sun, using heavy clay soil without drainage, and not providing enough shade.
Plants you might compare or use together — scored by shared family (Polypodiaceae), common use cases, and growing requirements.
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