Artillery Plant (Artillery Fern) care

Light

Artillery Plant is what florists mean by "bright spot, no direct sun" — close enough to a south or east window to feel the brightness, with a sheer curtain or a few feet of distance keeping the sun off the leaves. Thrives in bright, indirect light near an east- or west-facing window. Tolerates a little gentle morning sun, but hot direct afternoon rays scorch the delicate foliage. Too little light makes growth leggy and pale; rotate the pot for even, bushy growth. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water artillery plant when the top 1-2 cm (about half an inch) of soil is dry. 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 but never waterlogged. This species is notably finicky and sensitive to BOTH overwatering and underwatering: soggy soil triggers root rot, while a single dry-out causes the tiny leaves to crisp and drop. Water a little less in winter.

Soil and pot

Artillery Plant grows best in light, well-draining, organic-rich potting mix. Use a peat- or coir-based mix amended with perlite for drainage; an African violet mix works well by balancing moisture retention with aeration. It tolerates acidic, neutral, or alkaline pH. A breathable pot with drainage holes is essential to prevent root rot. 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

Artillery Plant sits happiest at around 50-70% humidity and 18-24 C (65-75 F). A moisture-loving plant that suffers in dry indoor air. Aim for 50 percent or higher; use a humidifier or a pebble tray. Avoid heavy direct misting in still air, since damp foliage with poor airflow can invite powdery mildew. Good air circulation keeps it healthy. If you keep the room above 18 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 artillery plant sparingly. Feed lightly with a balanced, water-soluble houseplant fertiliser diluted to half strength roughly every 4-6 weeks during spring and summer. Stop feeding in autumn and winter when growth slows. This is not a heavy feeder, and over-fertilising can burn the fine roots and tender foliage. 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 artillery plant in the Growli community. Each is annotated with the most common cause so you know where to start.

• Leaf crisping and drop — Caused by letting the soil dry out fully, low humidity, or hot direct sun. The tiny leaves are unforgiving of drought. Keep soil evenly moist and humidity above 50 percent.
• Root rot from overwatering — Soggy, poorly drained soil is the most common killer. Stems blacken and collapse at the base. Use a well-draining mix, a pot with drainage holes, and let the top of the soil dry slightly between waterings.
• Leggy, sparse growth — Insufficient light stretches the stems and thins the foliage. Move to a brighter spot with indirect light and pinch back the tips regularly to encourage dense, bushy regrowth.
• Powdery mildew — A white dusty coating that appears in high humidity with stagnant air. Improve airflow, avoid wetting the foliage in still conditions, and remove affected leaves.
• Sap-sucking pests — Spider mites, mealybugs, scale, and aphids can all appear, especially on stressed plants in dry air. Inspect regularly and treat with insecticidal soap or neem oil.
• Brittle, snapping stems — The succulent stems break very easily when handled or moved. Site the plant somewhere it won't be brushed often, and propagate any broken pieces as cuttings rather than discarding them.

Propagation

Very easy from stem cuttings. Take a healthy 5-8 cm (2-3 in) tip with several leaves, cut just below a node, and strip the lower leaves. Root in moist, well-draining mix (or water) under bright indirect light; covering with a clear bag holds humidity. Roots typically form in 2-3 weeks. 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

Artillery Plant is pet-safe. The ASPCA individually lists Pilea microphylla (artillery plant, family Urticaceae) as non-toxic to dogs, cats, and horses. It is a genuinely pet-safe houseplant, though as with any plant, nibbling can cause mild stomach upset, so discourage heavy chewing. 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.

Artillery Plant deep-dive guides

Every aspect of artillery plant care, each with its own calibrated guide:

• Artillery Plant watering schedule
• Artillery Plant light requirements
• Best soil mix for artillery plant
• Artillery Plant fertilizing guide
• When to repot artillery plant
• How to propagate artillery plant
• Artillery Plant growth rate & size
• Artillery Plant cold hardiness
• Artillery Plant temperature & humidity
• Is artillery plant toxic to cats & dogs?

Related guides

Artillery Plant is also known as Artillery Plant, Artillery Fern, Rockweed, Gunpowder Plant, and Angeloweed.

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• All 609 plant care guides in the Growli library