Old World forkedfern
Dicranopteris linearis · Gleicheniaceae
The gardener's calendar
Ideal time to plant old world forkedfern: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Common name
- Linear-leaved fern or Climbing fern
- Family
- Gleicheniaceae
- Plant type
- Fern
- Foliage
- Evergreen
- Adult size
- Up to 1 to 2 m in height depending on conditions
- Growth
- Moderate to fast
- Hardiness
- Tropical and subtropical, poorly frost-hardy
- Origin
- Tropical and subtropical regions of Asia and the Pacific
Care
Light exposure
Place this fern in indirect light or partial shade, away from direct sunlight that can scorch its delicate foliage. It thrives in environments with soft, consistent lighting, typical of tropical understories. Protect it from overly dark areas that would slow its growth.
Watering
Keep the substrate regularly moist without waterlogging it. Water when the soil surface begins to dry slightly, ideally with soft water at room temperature. During dry seasons or winter, space out waterings while ensuring the fern doesn't completely dry out.
Soil and substrate
Use a well-draining substrate rich in organic matter, composed of horticultural compost, coconut fiber, or blonde peat. This fern appreciates light, aerated soils similar to those found in humid forest areas. Avoid overly compact mixes that promote root asphyxiation.
Fertilizer
Apply diluted, balanced fertilizer every 15 to 20 days during the active growing period (spring-summer). Prefer light, regular applications to heavy doses, as ferns are generally not heavy feeders. Reduce or stop applications in fall-winter.
Pruning and maintenance
Regularly remove dead or damaged fronds at the base to encourage new frond emergence. Gently clean the foliage with a damp cloth to maintain good photosynthesis. Avoid drastic pruning; ferns prefer gradual and selective removal.
Diseases and pests
Watch out for spider mites and mealybugs that thrive in dry air; maintain sufficient ambient humidity through regular misting. Monitor substrate moisture to prevent root rot from water stagnation. If infestation occurs, isolate the plant and treat with a diluted soft soap solution.
Did you know?
Dicranopteris linearis, locally known in the South Pacific and tropical Asia, is one of the most remarkable pioneer ferns: it rapidly colonizes volcanic terrain and disturbed areas, fixing atmospheric nitrogen through symbiosis with cyanobacteria. This ancient fern, with origins dating back millions of years, remains a living witness to the resilience of tropical ecosystems.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.