Maintain consistently moist soil, mimicking its natural humid environment. Water thoroughly when the top 1-2 cm of soil begins to feel dry. Avoid waterlogging, as this can lead to root rot.

Reduce watering slightly during cooler, less active growth periods.

Pruning is generally minimal for Thelypteris lithophylla. Remove any dead, damaged, or yellowing fronds as they appear by cutting them back to the rhizome.

This helps maintain the plant's health and appearance, and encourages new growth. Wear gloves as some ferns can irritate skin.

Thelypteris lithophylla can be propagated by dividing established rhizomes in spring. Carefully separate sections of the rhizome, ensuring each division has at least one growth bud.

Plant these divisions in moist, well-draining potting mix and keep them consistently humid until established.

Repot young plants annually or when root-bound, typically in spring. Mature plants can be repotted every 2-3 years. Use a well-draining potting mix, such as a blend of peat moss, perlite, and compost.

Choose a pot that is only slightly larger than the current one.