Painted Fern 'Burgundy Lace' (Burgundy Lace painted fern) care

Light

Painted Fern 'Burgundy Lace' wants the spot a few feet back from a sunny window — bright enough to read a paperback at noon, but the sun never falls directly on the leaves. Part to full shade with bright indirect or dappled light gives the deepest burgundy tones. Hot direct sun scorches and fades the fronds, while heavy shade reduces the red flush and weakens growth. Morning light with afternoon shade is ideal. A faint hand shadow at midday is the right amount; a sharp dark shadow means it's getting direct sun and probably too much.

Watering

Water painted fern 'burgundy lace' when the top 1-2 cm of soil begins to dry, often every 4-7 days. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Keep the soil consistently moist during active growth; the finely cut fronds crisp at the edges if it dries out. Water freely in summer. Being deciduous, it dies back in autumn and needs only light moisture through winter dormancy.

Soil and pot

Painted Fern 'Burgundy Lace' grows best in humus-rich, moisture-retentive, free-draining soil. Likes a leaf-mould or compost-rich woodland soil that holds moisture while draining, slightly acidic to neutral. For containers, blend coir or peat with compost and perlite. Steady moisture without waterlogging keeps the colourful fronds full and healthy. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Painted Fern 'Burgundy Lace' sits happiest at around 50-70% humidity and 13-22°C (55-72°F). Prefers moderate to high humidity; dry indoor air browns the fine frond edges. Outdoors in shaded, sheltered ground it seldom struggles. Indoors, cluster with other plants or use a humidifier, and keep it away from radiators and vents. If you keep the room above 13 year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed painted fern 'burgundy lace' sparingly. Light feeding suits it. Outdoors, mulch annually in spring with leaf mould or compost. In pots, feed monthly through spring and summer with a balanced liquid fertiliser at half strength, then stop once the fronds die back into winter dormancy. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on painted fern 'burgundy lace' in the Growli community. Each is annotated with the most common cause so you know where to start.

• Browning, crisped frond edges — From dry soil or low humidity. Maintain even soil moisture, raise humidity indoors, and shelter from hot sun and drying wind.
• Loss of burgundy colour — Too much direct sun fades the red; too little light mutes it. Bright dappled shade brings out the strongest wine tones, especially on new fronds.
• Winter die-back — Normal for a deciduous fern. Fronds die down in autumn; cut them off, keep the crown lightly moist, and it returns in spring.
• Slugs on emerging fronds — Tender spring crosiers are prone to grazing. Use barriers or wildlife-safe slug deterrents around the crown.

Propagation

Propagate by dividing the crown in early spring as growth resumes, keeping roots and growing points on each piece to preserve the cultivar's colouring. Spores can be sown on sterile damp medium but are slow and may not come true to type. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Painted Fern 'Burgundy Lace' is mildly toxic to pets. Athyrium niponicum is not individually listed in the ASPCA toxic/non-toxic plant database (the ASPCA 'Japanese holly fern' entry is the unrelated Cyrtomium falcatum). Status is not ASPCA-confirmed; treat with caution and verify with a vet. Ingestion may cause mild gastrointestinal upset. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Painted Fern 'Burgundy Lace' deep-dive guides

Every aspect of painted fern 'burgundy lace' care, each with its own calibrated guide:

• Painted Fern 'Burgundy Lace' watering schedule
• Painted Fern 'Burgundy Lace' light requirements
• Best soil mix for painted fern 'burgundy lace'
• Painted Fern 'Burgundy Lace' fertilizing guide
• When to repot painted fern 'burgundy lace'
• How to propagate painted fern 'burgundy lace'
• Painted Fern 'Burgundy Lace' growth rate & size
• Painted Fern 'Burgundy Lace' cold hardiness
• Painted Fern 'Burgundy Lace' temperature & humidity
• Is painted fern 'burgundy lace' toxic to cats & dogs?
• Is painted fern 'burgundy lace' toxic to cats?
• Is painted fern 'burgundy lace' toxic to dogs?

Featured in these plant shortlists

Painted Fern 'Burgundy Lace' qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best low-light houseplants — Houseplants that need no direct sun and cope with a north-facing room or a spot well back from a window.
• Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
• Best humidity-loving houseplants — Houseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
• Best bathroom plants — Humidity-loving houseplants that also cope with lower light — suited to the steamy, often-dim conditions of a typical bathroom.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

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Painted Fern 'Burgundy Lace' is also commonly called Burgundy Lace painted fern.

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