General Fern Care

Ferns are lush, elegant plants that thrive in humid, shaded environments. They are well-known for their delicate, feathery fronds and adaptability to indoor and outdoor settings. While care may vary slightly by variety, the following guidelines will help you maintain a healthy fern.

Light

  • Indirect, filtered light to partial shade.

  • Most ferns prefer low to medium light and will burn in direct sun.

  • Indoors, place near north- or east-facing windows for best results.

  • Some varieties, like the Boston Fern, can tolerate more light with high humidity.

Humidity

  • Ideal Humidity: High humidity (50–80%).

  • Ferns thrive in moist air, making them perfect for bathrooms, kitchens, or terrariums.

Watering

  • Avoid letting the soil dry out!

  • Keep soil consistently moist but not soggy.

  • Water when the top ½–1 inch of soil feels dry.

Temperature

  • Ideal Temperature: 60–75°F 

  • Avoid extreme heat or cold, as ferns are sensitive to temperature fluctuations.

  • Keep away from drafts, heating vents, or air conditioners.

Fertilizing

  • Feed lightly during the growing season (spring–summer).

  • Use a diluted, balanced liquid fertilizer every 4–6 weeks.

  • Avoid over-fertilizing, as it can burn delicate roots and fronds.

Varieties of Ferns

Different ferns have unique care needs, but most follow the same general guidelines:

  • Boston Fern (Nephrolepis exaltata) – Classic indoor fern, loves humidity.

  • Maidenhair Fern (Adiantum spp.) – Delicate fronds, requires extra moisture.

  • Bird’s Nest Fern (Asplenium nidus) – Wavy, tropical leaves, tolerates lower humidity.

  • Staghorn Fern (Platycerium spp.) – Epiphytic fern that thrives mounted on wood.

  • Asparagus Fern (Asparagus setaceus) – Not a true fern but has similar care needs.