Plant your licorice fern in a plastic pot with well-drained soil rich in organic matter like hummus. A mixture of 3 parts hummus to 1 part potting soil is adequate. Plastic pots retain moisture better than clay pots and are best for ferns.
Place the container in an area with low light and high humidity. Dr. Leonard Perry from the University of Vermont recommends growing ferns in your bathroom. If you don't have a suitable bathroom, place your fern in a tray filled with pebbles. You can add water to the pebbles and the evaporation will keep the fern moist.
Water frequently, because licorice ferns grow in very moist conditions so their soil should never be allowed to dry out. Ensure proper drainage, however, since ferns left in standing water are prone to root rot. A good rule of thumb is to keep drainage dishes empty of water. Check them 15 minutes after you water and empty them if needed. Misting from a spray bottle during cold, dry winters will help keep ferns hydrated.
Fertilize monthly from September through March with a fertilizer specified for use on ferns. Apply fertilizer at half the strength recommended to ensure you don't damage any foliage. Licorice ferns can be evergreen but are summer deciduous in hot conditions. This means they actively grow during the winter months and should be fertilized during this period.