Japanese Painted Fern
Athyrium niponicum
The Japanese Painted Fern is a popular ornamental fern with multi-colored fronds in silvery-grey, soft green, and burgundy-red stems. It grows in a low, spreading mound and adds texture and a metallic look to shaded indoor spots or woodland gardens.
Light
Medium
Water
High
Difficulty
Moderate
Humidity
High
Pet Friendly
The Japanese Painted Fern is considered non-toxic to cats, dogs, and horses, making it a safe choice for pet-friendly households.
Care Notes
Light
Indoors, choose bright, indirect light. Direct sun scorches the silvery fronds.
Water
Keep the soil evenly moist but never waterlogged. This fern does not like drying out. Water when the surface just starts to feel less damp, and use a pot with drainage holes.
Soil
Plant in a moist, organic-rich mix that still drains well. Peat or compost-based soil with a slightly acidic pH works well.
Humidity and Temperature
Aim for humidity of 50% or higher with a humidifier, pebble tray, or plant grouping. Prefer cool to average rooms around 60°F to 75°F, and keep the fern away from drafty windows and heat vents. As a deciduous fern, it may go dormant in winter; if fronds die back, water less and wait for spring growth.
Common Issues
Crispy fronds usually mean low humidity or underwatering. Yellowing often points to overwatering or poor drainage.
In-Depth Care & Growth
Feeding & Soil
Fertilizer
Balanced liquid fertilizer diluted to half-strength
Soil
Moist, well-drained soil rich in organic matter (like peat or compost) with a slightly acidic pH.
Physical Attributes
Mature Size
12 to 18 inches tall and wide
Growth Rate
Moderate
Propagation
Division of the rhizomes in early spring before new growth begins.
Common Varieties
Pictum
Arching triangular fronds with a metallic silver-gray sheen, burgundy-red midribs, and soft green margins.
Silver Falls
Arching triangular fronds with a bright metallic silver sheen against deep burgundy central veins.
Burgundy Lace
Lace-like fronds with deep burgundy-red midribs that blend into silver-gray foliage.
Apple Court
Metallic silver-and-green fronds with burgundy midribs and multi-branched crested tips that look ruffled.
Regal Red
Arching triangular fronds of silver-pewter highlighted by deep burgundy ribs and stems.