Asplenium onopteris
Care, watering, light and tips for Asplenium onopteris on Floravia.
Quick facts
- Family: Aspleniaceae
- Difficulty: Demanding
- Watering: every 3 days
- Light: Partial shade
- Temperature: 10–30 °C
About Asplenium onopteris
Asplenium onopteris, commonly known as the Irish Spleenwort, is a small to medium-sized perennial fern characterized by its delicate, bipinnate or tripinnate, glossy dark green fronds, giving it a fine and elegant appearance. It is ideal for shaded rock gardens, fern gardens, or as an indoor plant in terrariums and humid environments, where its texture adds subtle visual interest.
Native range
Western and Southern Europe, North Africa, and Macaronesia
Care tips
This fern thrives in partial to full shade, avoiding direct sunlight which can scorch its fronds. It requires consistently moist but well-drained soil, rich in organic matter and slightly acidic; watering should be regular, keeping the substrate moist without waterlogging. Absolutely avoid dry air and sudden temperature changes, as it is prone to water stress and frond desiccation under these conditions.
How to save a dying Asplenium onopteris
- Warning signs
- Wilting, dry or brown-edged fronds, dull appearance. Stunted growth.
- First aid
- Move to a shady, humid spot. Mist with distilled or rainwater. Check substrate for drainage.
- What kills it
- Dry air and lack of substrate moisture. Direct sun or drafts.
- Can it be saved?
- Yes, if roots aren't completely dry. Recovery is slow but possible with consistent humidity.