Keep the soil consistently moist but not waterlogged. Allow the top 2-3 cm of soil to dry out slightly between waterings. Reduce watering frequency during cooler months to prevent root rot.

Use filtered or distilled water if your tap water is heavily chlorinated or has high mineral content.

Prune away any dead, damaged, or yellowing fronds as needed to maintain the plant's aesthetic appeal and health. Use clean, sharp scissors or pruning shears to make clean cuts at the base of the frond.

This encourages new growth and prevents disease spread.

Asplenium antiquum is primarily propagated by dividing established clumps during repotting. Carefully separate the rhizomes, ensuring each division has healthy roots and at least a few fronds.

Alternatively, spores can be collected and sown on a sterile medium, though this is a slower and more advanced method.

Repot every 2-3 years or when the plant becomes root-bound. Choose a pot that is only slightly larger than the current one. Use a well-draining potting mix, such as a blend of peat moss, perlite, and orchid bark.

Repot in spring for best results.