Staghorn Ferns (Platycerium spp.) are native to tropical rainforests, so it’s no surprise that they thrive in environments with high humidity. Understanding their humidity needs is crucial, especially for those living in drier climates in the United States. Here’s what you need to know about the preferred humidity levels for Staghorn Ferns and how to care for them when the air is dry:

Preferred Humidity Levels for Staghorn Ferns:

Staghorn Ferns flourish in humidity levels between 60% and 75%. This high humidity mimics their natural subtropical habitat where they grow attached to trees under the rainforest canopy.

Caring for Staghorn Ferns in Dry Environments:

Maintaining high humidity can be challenging in many homes, especially during winter when heating systems dry out the air. Here are several ways to provide the necessary humidity for your Staghorn Fern in a dry environment:

• Regular Misting: Misting the fronds and the mounting material of your Staghorn Fern regularly is one of the simplest ways to increase humidity around the plant. Aim to mist the fern several times a week, or even daily, especially during dry periods. A fine mister is ideal.
• Humidifier: Investing in a room humidifier can be a very effective way to maintain consistent humidity levels, not just for your Staghorn Fern but for other humidity-loving houseplants as well. Place the humidifier near your fern to create a localized humid microclimate.
• Pebble Tray: Place your mounted or potted Staghorn Fern above a tray filled with pebbles and water. As the water in the tray evaporates, it increases the humidity in the immediate vicinity of the plant. Ensure the bottom of the fern or its mount is not sitting directly in the water to prevent rot.
• Grouping Plants: If you have other humidity-loving plants, grouping them together can create a more humid environment as they release moisture through transpiration.
• Bathroom or Kitchen Placement: Bathrooms and kitchens often naturally have higher humidity levels due to showers, baths, and cooking. Placing your Staghorn Fern in one of these rooms can be highly beneficial, especially if you live in a dry climate. Ensure the location still provides adequate indirect light.
• Terrarium or Enclosure: For smaller Staghorn Ferns, creating a terrarium or placing them in a clear enclosure can help trap humidity and maintain higher levels around the plant. Ensure there is still some airflow to prevent fungal issues.
• Increase Watering Frequency (Carefully): While not a direct substitute for humidity, slightly increasing the frequency of watering (ensuring the plant dries out appropriately between waterings to avoid rot) can help compensate for the dry air to some extent.

Recognizing Signs of Low Humidity:

If the humidity is too low, your Staghorn Fern might show certain signs of stress, including:

• Brown or crispy edges on the fronds.
• Stunted growth.
• Fronds feeling thin and brittle.

By implementing these strategies, you can help your Staghorn Fern thrive even in a drier home environment, ensuring it receives the moisture it needs to maintain its lush and unique foliage.