Licorice fern (Polypodium glycyrrhiza)
Care, watering, light and tips for Licorice fern on Floravia.
Quick facts
- Family: Polypodiaceae
- Difficulty: Moderate care
- Watering: every 4 days
- Light: Shade
- Temperature: 10–25 °C
About Licorice fern
Polypodium glycyrrhiza, commonly known as licorice fern, is a perennial fern native to western North America. It is characterized by its deeply lobed, bright green fronds and licorice-flavored rhizomes. It is ideal for shaded gardens, rockeries, or as a hanging plant in cool, humid indoor environments.
Native range
Pacific Northwest of North America, from central California to British Columbia and Alaska
Care tips
It prefers partial to full shade and consistent moisture, avoiding waterlogging. The substrate should be well-drained, rich in organic matter, and slightly acidic. Water regularly to keep the substrate moist, but allow the top layer to dry out slightly between waterings. Avoid extreme substrate dryness, as it can lead to frond desiccation.
How to save a dying Licorice fern
- Warning signs
- Pale or yellowing fronds, dry or shriveled rhizomes. Brown edges indicate dry air or lack of humidity.
- First aid
- Increase ambient humidity (pebble tray or mist), check substrate (should be moist, not soggy). Move to partial shade.
- What kills it
- Prolonged dry substrate or air, direct sun exposure, over-fertilization. Does not tolerate waterlogging.
- Can it be saved?
- Yes, if rhizomes are not completely dry or rotted. Recovery can be slow, but it will sprout with patience and care.