Giant maidenhair fern (Adiantum formosum)
Care, watering, light and tips for Giant maidenhair fern on Floravia.
Quick facts
- Family: Pteridaceae
- Difficulty: Demanding
- Watering: every 3 days
- Light: Shade
- Temperature: 10–28 °C
About Giant maidenhair fern
Adiantum formosum, commonly known as giant maidenhair fern, is a perennial fern characterized by its delicate, pinnate, bright green fronds growing on shiny black stems. Its elegant habit makes it an excellent choice for shaded gardens, indoor patios, or as a potted houseplant in hanging baskets or on pedestals. It adds a fine texture and a touch of freshness to any space.
Native range
Australia and New Zealand
Care tips
This fern thrives in partial to full shade, avoiding direct sunlight which can scorch its fronds. It requires consistent watering to keep the soil moist but never waterlogged; high ambient humidity is crucial. Use a well-draining, organic-rich, preferably slightly acidic substrate. A common mistake is allowing the substrate to dry out completely, which can lead to the desiccation and death of the fronds.
How to save a dying Giant maidenhair fern
- Warning signs
- Dry, curled, brown, brittle fronds; loss of luster and intense green color.
- First aid
- Move it to a humid, shady spot. Increase ambient humidity with frequent misting or a humidifier. Water if substrate is dry.
- What kills it
- Dry air and lack of constant humidity. Also direct sun and drafts.
- Can it be saved?
- Yes, if the rhizome is still alive and green. With patience and humidity, it can regrow.