Staghorn fern watering depends on whether it is mounted or potted, since a small moss pad dries differently from a deep container. Check the material around the roots and leave healthy shield fronds in place.
Recognize the two kinds of fronds
Staghorn ferns develop shield fronds around the root area and antler-like fertile fronds. Older shield fronds can turn brown naturally. Do not peel them away simply because they resemble dead material on an ordinary potted houseplant.
Water the growing setup
A mounted plant and a fern in a pot dry differently. Wet the appropriate root material when needed, then let excess drain with suitable airflow. Avoid repeatedly leaving the base stagnant or letting the entire mounting material remain dry for prolonged periods.
Use filtered light and stable support
Provide suitable brightness without abruptly exposing sheltered fronds to harsh sun. Secure the plant without cutting into living tissue. Check ties as growth develops and the plant becomes heavier after watering.
Handle changes gently
Keep a species label for specific temperature guidance. Do not scrub natural frond coatings or interpret every brown patch as a pest. Feed appropriately during healthy growth, and investigate root conditions before trying to force new fronds with concentrated fertilizer.
Related reading
Staghorn Fern Types: Shield Fronds and Fertile Fronds