How to Care for a Lycopodium Squarrosum Plant


Lycopodium squarrosum, commonly known as rock tassel fern, is defined as an "evergreen perennial herbaceous epiphyte or fern ally," by Michigan State University. That means it reproduces by spores, with sporangia found on its cones or leaf axils. Rock tassel fern is a member of the club moss family and is native to Africa, Polynesia, Australia and Asia. In the U.S., it grows outdoors in USDA hardiness zones 10 to 12. It also can be grown indoors with the proper care.

Step 1

Place your rock tassel fern in part to full shade. Because it grows in trees and the low parts of rain forests, the plant cannot take direct sunlight.

Step 2

Keep the moss constantly moist. Choose a medium that has a high percentage of peat moss. Use a humidifier in the room to keep the air moist, or mist your plant at least every other day. Misting, however, can lead to foliar diseases.

Step 3

Fertilize with a light dose of fish emulsion or use a fertilizer specifically for houseplants at half strength. Do not fertilize during the dormant winter months.

Things You'll Need

  • Soil
  • Humidifier or mister
  • Fish emulsion or houseplant fertilizer


  • Rock Tassel Fern
  • University of Minnesota Extension Service: Ferns

Who Can Help

  • USDA Hardiness Zones
Keywords: Lycopodium squarrosum, rock tassel fern, caring for indoor ferns

About this Author

Aileen Clarkson has been an award-winning editor and reporter for more than 20 years, earning three awards from the Society of Professional Journalists. She has worked for several newspapers, including "The Washington Post" and "The Charlotte Observer." Clarkson earned a Bachelor of Arts in journalism from the University of Florida.