The Bear Paw Fern (Phlebodium aureum ‘Mandaianum’) is a captivating houseplant named for its distinctive, fuzzy rhizomes. Its arching, blue-green fronds with wavy edges add unique texture and visual interest to indoor spaces. This tropical plant is an epiphyte, growing on other plants or structures rather than in soil, which influences its care requirements.
Optimal Care Requirements
Light
Bear Paw Ferns thrive in bright, indirect light. A north or east-facing window provides sufficient brightness without harsh direct sun exposure. Direct sunlight can scorch the fronds and lead to crispiness. If a south or west-facing window is the only option, position the fern a few feet away or use sheer curtains to filter intense light.
Watering
Consistent soil moisture benefits Bear Paw Ferns, but avoid waterlogging to prevent root rot. Allow the top inch or two of soil to dry before watering again. Water thoroughly until water drains from the pot’s bottom, ensuring the root ball is hydrated. Use pots with good drainage holes.
Humidity and Temperature
The Bear Paw Fern prefers high humidity. To increase humidity, especially in drier indoor environments, use a pebble tray filled with water, ensuring the pot does not sit directly in the water. Grouping plants together or using a room humidifier can also create a more humid microclimate. The ideal temperature range is between 65 and 75 degrees Fahrenheit (18 to 24 degrees Celsius). While some sources indicate tolerance up to 100°F (38°C), temperatures consistently above 85°F (29°C) can cause stress, particularly if humidity is low. Protect the plant from extreme temperature fluctuations and cold drafts.
Soil and Fertilizing
A well-draining, airy, and organically rich soil mix is suitable for Bear Paw Ferns. Many fern or aroid potting mixes work well, or create a custom blend with potting soil, perlite, or orchid bark for enhanced drainage and aeration. These ferns are not heavy feeders, benefiting from infrequent fertilization. During the active growing season (spring through summer), apply a balanced liquid fertilizer diluted to half strength every two to four weeks. Reduce or cease fertilization during fall and winter when growth naturally slows.
Repotting and Propagation
Repotting
Repot a Bear Paw Fern every two to three years, or when it becomes root-bound, indicated by roots growing out of the drainage holes. Spring is the best time for repotting, as the plant enters its active growing phase. Choose a pot only slightly larger than the current one to prevent the soil from holding too much moisture. Handle the fuzzy rhizomes gently to avoid damage.
Propagation
Propagation of the Bear Paw Fern is achieved through division of its rhizomes. Carefully separate a section of the rhizome that has fronds and roots attached. Plant the separated section in its own pot with well-draining soil. Ensure each new section has healthy fronds and a portion of the rhizome for successful new growth.
Troubleshooting Common Issues
Brown or crispy leaf tips
Brown or crispy leaf tips often signal low humidity or insufficient watering. Increase ambient humidity using pebble trays or humidifiers, and ensure the soil remains consistently moist but not soggy, to alleviate these symptoms.
Yellowing leaves
Yellowing leaves can indicate overwatering, starving roots of oxygen and leading to root rot. If leaves are soft and mushy, overwatering is a likely cause; allow the soil to dry more between waterings. Yellowing might also point to a nutrient deficiency, though this is less common given their low fertilization needs.
Drooping fronds
Drooping fronds are a sign of underwatering or general plant stress. If the soil is dry and fronds appear limp, a thorough watering should help the plant recover.
Pests
While ferns are less prone to severe pest infestations than some other houseplants, they can encounter common pests like spider mites, mealybugs, aphids, or scale insects. Inspect the plant regularly, especially the undersides of leaves and along the rhizomes, for early detection. For most pests, wiping them off with a damp cloth, using insecticidal soap, or applying neem oil can effectively manage the issue.