Lemon Button Fern
Nephrolepis cordifolia 'Duffii'
The Lemon Button Fern is a compact sword fern with petite arching fronds and button-shaped leaflets. When you brush the foliage, it often gives off a light lemon scent. It fits well in terrariums and other small spaces.
Light
Bright Indirect
Water
High
Difficulty
Moderate
Humidity
High
Pet Friendly
This plant is non-toxic to cats, dogs, and horses, making it a safe choice for pet owners.
Care Notes
Light
Provide bright, filtered light. Avoid direct afternoon sun, which scorches delicate fronds. Low light slows growth.
Water
Keep the soil consistently moist but not waterlogged. Water when the top feels slightly dry, and never let the root ball dry out completely. Use a pot with drainage holes.
Soil
A peat-based mix with perlite holds moisture while still draining.
Humidity and Temperature
Humidity of 50% or higher helps this fern thrive. Use a humidifier, pebble tray, or a bright bathroom. In winter, water a bit less as growth slows, but keep humidity up if heaters are running.
Common Issues
Yellowing fronds often mean overwatering. Crispy brown edges usually signal low humidity or underwatering.
In-Depth Care & Growth
Feeding & Soil
Fertilizer
Balanced liquid fertilizer
Soil
Peat-based potting mix with some perlite for drainage.
Physical Attributes
Mature Size
12 inches tall and wide
Growth Rate
Moderate
Propagation
Division of the root ball or runners during the spring.
Common Varieties
Duffii
Slender arching fronds lined with pairs of small, rounded bright green leaflets that look like tiny buttons.
standard Nephrolepis cordifolia
Long arching fronds with small rounded bright green leaflets that resemble tiny serrated buttons.