Black spleenwort (Asplenium adiantum-nigrum)
Care, watering, light and tips for Black spleenwort on Floravia.
Quick facts
- Family: Aspleniaceae
- Difficulty: Demanding
- Watering: every 3 days
- Light: Partial shade
- Temperature: 10–30 °C
About Black spleenwort
Asplenium adiantum-nigrum, commonly known as black spleenwort, is a medium-sized perennial fern featuring glossy, dark green, bipinnate to tripinnate fronds that emerge from a short, creeping rhizome. Its distinctive black, shiny stipes and midribs give it its common name. It is ideal for shaded rockeries, old walls, or as a potted indoor plant, where its delicate texture and dark color provide a beautiful contrast.
Native range
Europe, Asia, and North Africa
Care tips
It prefers partial to full shade, avoiding direct sunlight which can scorch its fronds. Keep the substrate consistently moist but well-drained, without waterlogging, and water with soft or rainwater if possible. Use an organic-rich, slightly acidic substrate with good drainage. A common mistake to avoid is allowing the substrate to dry out completely between waterings, as it does not tolerate drought.
How to save a dying Black spleenwort
- Warning signs
- Wilting, dry, brittle fronds, especially at edges and tips. Yellow or brown discoloration of foliage. Stunted or slow growth.
- First aid
- Move to deep shade and consistent humidity. Water only when substrate surface is dry, avoiding waterlogging. Mist fronds daily with lime-free water.
- What kills it
- Direct sun exposure, dry air, and lack of humidity. Prolonged dry substrate or constant waterlogging are fatal.
- Can it be saved?
- Yes, if you act quickly. It's quite resilient. With proper care, it can regrow even if severely damaged.