How to grow bird nest fern
Overview
Bird nest fern (Asplenium australasicum) is an epiphytic herb grown for its striking, arching fronds that form a rosette. It thrives in shaded, sheltered gardens and is ideal for filling gaps in beds or growing on logs.
Soil Preparation
Bird nest fern prefers a well-draining, organic-rich soil with a pH of 5.5-6.5. Amend with peat moss or compost to improve moisture retention. Ensure excellent drainage to avoid waterlogging.
Growing Guide
Plant bird nest fern in a position with bright, indirect light and protection from harsh afternoon sun. Use a well-draining, organic-rich mix such as orchid bark or peat moss. Space plants 60-90 cm apart to allow for mature spread. Keep the crown above soil level to prevent rot.
Care
Feed with a balanced liquid fertiliser every 4-6 weeks during spring and summer. Remove yellow or damaged fronds at the base. Keep the crown free of mulch to prevent rot.
Companion Planting
Pair with other shade-loving epiphytes like staghorn ferns, elkhorn ferns, and bromeliads. Avoid planting near plants that require full sun or dry conditions, such as succulents or cacti.
Common Pests & Risks
Scale insects and snails are common pests. Control scale with horticultural oil or neem oil. Remove snails by hand or use iron-based baits. Ensure good air circulation to reduce pest issues.
Troubleshooting
Yellow fronds: overwatering or poor drainage; reduce watering and improve drainage. Brown frond edges: low humidity or dry air; increase humidity with misting. Stunted growth: insufficient light; move to brighter location. Crown rot: crown buried in mulch; keep crown exposed. Scale infestation: treat with horticultural oil.