Identity & taxonomy
- Scientific name
- Ctenanthe burle-marxii H.A.Kenn.
- Family
- Marantaceae
- Genus
- Ctenanthe
- Order
- Zingiberales
- IUCN status
- Least Concern (LC)
- Wikidata
- Q21859321
- Fishbone prayer planten
- Never-never planten
- Burle-Marx prayer planten
- Fiskbensbönväxtsv
- Fiskebensbønneplanteno
- Fiskebensbønneplanteda
- Kalanruotokalatheafi
- Fischgräten-Korbmarantede
Eastern Brazil (Atlantic coastal rainforest, Bahia state)
How to identify it
Growth habit. Compact clumping rhizomatous perennial. Long-petioled leaves rise individually from a slowly spreading underground rhizome and arrange in a dense low clump. The clump expands by 4–8 new leaves per growing season indoors, faster than typical Goeppertia. Leaves rise nearly vertical at night and lay flat during the day — the 'prayer plant' nyctinastic motion driven by a thickened pulvinus joint where the petiole meets the blade.
Leaves. Oblong-elliptic to broadly lance-shaped leaves 10–20 cm long and 5–10 cm wide on petioles 15–25 cm. Upper surface is silvery to pale grey-green with bold dark green to near-black stripes branching from a central midrib in a fishbone pattern — short oblique side bars at regular intervals, never connecting across the leaf. Underside is dark wine-red to maroon. Leaves are slightly leathery and noticeably stiffer than typical Calathea/Goeppertia foliage.
- Bold dark fishbone stripes branching from central midrib on silvery-green ground.
- Stripes are short oblique bars — never crossing the leaf full-width.
- Maroon underside flashes during nightly 'prayer' movement.
- Compact 30–45 cm clumping habit; multiple leaves per rhizome point.
- Slightly leathery stiffer leaves than typical calathea — more drought-tolerant.
Commonly confused with
Prayer plant
Closer relative with similar maroon underside and prayer-movement behaviour. Maranta has more rounded heart-shaped leaves with a different pattern: round dark spots OR herringbone red veins, not bold dark fishbone striping. Both Marantaceae but distinct genera.
Rattlesnake plant
Lance-shaped leaves with wavy margins and dark green markings on lighter ground. Larger plant overall (60–75 cm) and longer narrower leaves than Ctenanthe burle-marxii.
Pinstripe calathea
Dark green leaves with thin pink or white pinstripes parallel to the side veins — fine continuous stripes, not bold fishbone bars on lighter ground.
Stromanthe triostar
Striking pink-cream-green variegation; same Marantaceae family but immediately different visually. Larger plant and brighter colour overall.
Care
Light
Medium indirect light; tolerates lower light than most Marantaceae.
An east window, a north-bright window, or 1.5 m back from a south or west window with sheer curtain. Ctenanthe burle-marxii tolerates DIMMER conditions than most calatheas — it survives at 3,000 lux in a back-of-room position with slowed growth. Direct unfiltered sun bleaches the silvery ground and flattens the contrast of the fishbone pattern. Below 2,000 lux the pattern fades and the plant becomes leggy.
Seasonal: Nordic latitudes above 55°N: tolerates the dim winter better than Goeppertia/Calathea — one of the easier prayer-plants for low-light apartments.
Water
Top 2 cm dries — every 5–7 days; rainwater preferred.
Like Goeppertia, Ctenanthe is fluoride-sensitive — tap water in fluoridated regions causes brown leaf-tip browning within weeks. Use rainwater, distilled water, or filtered water. Water thoroughly until runoff, then let only the top 2 cm dry before watering again. The species tolerates a missed watering better than most calatheas but does NOT tolerate sustained sogginess.
Seasonal: Reduce frequency by about a third in winter when growth slows.
Soil
Light, peat-free, moisture-retentive aroid mix with extra perlite.
Two parts peat-free houseplant mix, one part fine bark, one part perlite. The mix should hold consistent moisture without staying soggy. Avoid heavy clay-loam — the rhizome rots in compacted wet soil within weeks.
Humidity
50–70 %; tolerates 45 % better than calathea.
More humidity-tolerant than most popular Marantaceae. 50 % is comfortably workable; below 40 % the leaf tips brown and the silvery ground loses brightness. A humidifier nearby through heating season helps; pebble trays and grouped plants offer marginal relief. Misting offers very brief help at best.
Temperature
16–24 °C; damage below 13 °C.
A warm-room plant. Cold draughts cause leaf yellowing. Below 13 °C the rhizome may go semi-dormant; below 10 °C tissue damage is severe. Keep away from doors that open to outside in winter.
Fertilizer
Quarter to half-strength balanced feed monthly in growing season.
A light feeder. Half-strength balanced NPK monthly April–September; over-fertilising shows as crispy tips and salt build-up. Flush soil with rainwater every 3 months. Skip feeding October–March.
Pruning
Trim spent leaves at the rhizome.
Trim yellowed or browned leaves at the petiole base, close to the rhizome, with sharp scissors. New leaves emerge from the rhizome through the year; trimming old material keeps the clump tidy.
Repotting
Every 2 years in spring; tolerates slight pot-binding.
Move up by one pot size in spring. Ctenanthe burle-marxii spreads by rhizome and benefits from periodic division at repotting time — see propagation. Use shallow wide pots rather than deep ones; the rhizome is shallow.
Division of the rhizome
easy~Immediate; recovery 4–8 weeksAt repotting time, lift the clump and tease apart into 2–3 sections, each with several leaves and a healthy section of rhizome. Pot each into fresh moisture-retentive mix. Water in lightly, cover loosely with a clear bag for 2 weeks to maintain humidity, and resume normal care once new leaves emerge. The most reliable propagation route — Ctenanthe is among the easiest Marantaceae to divide.
Cultivars
'Amagris'
Compact cultivar with silver-grey ground colour and slightly more pronounced dark fishbone stripes than the species.
Common problems
Brown crispy leaf tips and edges
Symptom
Tips and margins go brown and dry; rest of leaf stays green.
Cause
Most often fluoride or chlorine in tap water; less often low humidity below 45 % or salt build-up from over-fertilising.
Fix
Switch to rainwater, distilled water, or filtered water. Flush soil with 3× pot volume of rainwater. Run a humidifier aiming for 55 %+. Trim brown tips with scissors; new leaves emerge clean within 4–6 weeks.
Pattern fading on new leaves
Symptom
Older leaves have bold fishbone stripes; new leaves emerge with weaker, less contrasting pattern.
Cause
Light too low — the silvery ground and dark stripes both depend on adequate light intensity.
Fix
Move to a brighter indirect spot (east window or 1.5 m from south window with sheer curtain). New leaves emerge with full pattern within 6–10 weeks.
Lower leaves yellowing rapidly
Symptom
Multiple older leaves go yellow within days.
Cause
Most often overwatering and root rot; less often a sudden temperature drop.
Fix
Check soil moisture. If wet, reduce watering frequency and consider unpotting to inspect roots. If cold, move to a warmer position above 16 °C.
Leaves curling tightly
Symptom
Leaves curl inward along their long axis and stay rolled.
Cause
Severe underwatering, root damage, or extreme low humidity.
Fix
Check soil 5 cm down. If bone-dry, water thoroughly with rainwater (bottom-water for 30 minutes if very dry). Raise humidity. If soil is wet but leaves curl, suspect root rot and inspect rhizome.
Spider mite stippling
Symptom
Pale stippling on upper leaf surfaces; fine webbing under leaves.
Cause
Spider mites flourish in dry indoor air during heating season.
Fix
Shower under tepid water, then treat weekly with neem oil or insecticidal soap for 4 weeks. Raise humidity to 60 %+; spider mites cannot establish in genuinely humid conditions.
- Spider mites in dry winter air
- Thrips on leaf undersides
- Mealybugs at petiole bases
- Root rot from overwatering
- Leaf-spot fungal infection in stagnant humid air
Toxicity & safety
No reported toxicity in humans.
Ctenanthe — North Carolina Extension Gardener Plant ToolboxASPCA classifies prayer plant family species (Marantaceae, including Ctenanthe) as non-toxic to cats. Safe for cat households.
Prayer Plant — ASPCA Toxic and Non-Toxic PlantsASPCA classifies prayer plant family species as non-toxic to dogs. Safe for dog households.
Prayer Plant — ASPCA Toxic and Non-Toxic PlantsWhy Ctenanthe is the easier prayer plant for indoor growing
Marantaceae — the prayer plant family — is famously demanding indoors. The big-name species like Goeppertia ornata, G. orbifolia, G. roseopicta, and Maranta leuconeura all want 60 %+ humidity continuously, fluoride-free water, and warm stable temperatures. They reward owners with stunning patterned foliage but punish minor lapses with crisped leaf edges and rapid decline.
Ctenanthe sits at the easier end of the family. Burle-marxii in particular has slightly leathery leaves rather than the paper-thin delicacy of most Goeppertia species, a more drought-tolerant rhizome, and tolerates 45 % humidity in conditions where calathea would be browning out. It also accepts dimmer conditions without losing much pattern — a useful trait for low-light Nordic apartments.
If you've struggled to keep a calathea alive in a centrally-heated apartment, Ctenanthe burle-marxii is probably the prayer-plant you should be growing instead. You get the same prayer-movement nyctinasty, the same maroon underside flash, and a bold high-contrast leaf pattern — but with about 30 % less day-to-day fussiness. The plant looks superficially calathea-like to anyone who isn't a Marantaceae specialist, so the aesthetic pay-off is similar.
What 'fishbone' actually means and how to tell it from herringbone
Ctenanthe burle-marxii's pattern is consistently called 'fishbone', sometimes 'herringbone', occasionally just 'striped'. These three terms are used loosely in plant trade but they describe genuinely different patterns when used precisely.
Fishbone (the right term for Ctenanthe burle-marxii): short oblique BARS branching from a central midrib axis, NEVER connecting across the leaf. The pattern looks exactly like a fish skeleton — a backbone with paired ribs going outward. Short, thick, and clearly separated.
Herringbone (better for Maranta leuconeura 'Erythroneura'): zigzag continuous lines along the side veins, creating a 'V' pattern that DOES extend across the leaf. The pattern looks like the diagonal weave of herringbone tweed fabric.
Pinstripe (better for Goeppertia ornata): straight thin continuous lines parallel to the side veins, all the way across the leaf. No bars, no zigzags — just lines.
All three look superficially similar in low-resolution thumbnails, which is why plant labels are often inconsistent. Ctenanthe burle-marxii sits squarely in the fishbone category — short bars, distinct, branching off the central midrib only. Once you know what to look for, the species is easy to identify even from a distance.
Ctenanthe burle-marxii is named in honour of Roberto Burle Marx (1909–1994), the Brazilian landscape architect, painter, and ecologist whose modernist garden designs revolutionised tropical landscape architecture and brought Brazilian native plants into mainstream international cultivation. Burle Marx personally collected and described many ornamental Marantaceae species during decades of expeditions in Brazilian Atlantic forest, and several plants — including this one — were named for him posthumously. He is sometimes called 'the real creator of the modern garden' by landscape historians.
Frequently asked · 5
Is fishbone prayer plant (Ctenanthe burle-marxii) safe for cats and dogs?+
Yes. ASPCA classifies prayer-plant family species (Marantaceae, including Ctenanthe) as non-toxic to both cats and dogs. The whole family — Calathea/Goeppertia, Maranta, Stromanthe, Ctenanthe — is among the better choices for pet households.
Why is the pattern fading on my fishbone prayer plant?+
Light too low. The silvery-pale ground and dark fishbone stripes both depend on adequate light intensity to maintain contrast. Move to a brighter indirect spot — an east window or 1.5 m from a south window with a sheer curtain. New leaves emerge with full pattern within 6–10 weeks; existing faded leaves do not regain pattern.
Why are the tips of my Ctenanthe burle-marxii brown?+
Almost always fluoride or chlorine in tap water — the species shares the calathea family's tap-water sensitivity. Switch to rainwater, distilled water, or filtered water; flush the soil with 3× pot volume of rainwater. Low humidity below 45 % and salt build-up from over-fertilising can also cause tip browning. Trim brown tips with scissors following natural leaf shape.
Why is it called 'never-never plant'?+
The 'never-never' name is folk horticulture wisdom for the genus Ctenanthe meaning 'never let it dry out, never overwater it, never put it in direct sun, never expose it to cold'. It's a tongue-in-cheek warning that the plant has multiple conditions to balance — though Ctenanthe burle-marxii is actually one of the more forgiving species in the genus.
How is fishbone prayer plant different from a calathea?+
Both are in the prayer-plant family Marantaceae and share the nightly leaf-raising 'prayer' movement and maroon undersides. Differences: Ctenanthe burle-marxii has slightly leathery and stiffer leaves, tolerates lower light better, accepts somewhat lower humidity (down to 45 %), and is generally considered easier to grow indoors than most calatheas. The fishbone striping pattern is also distinct from the various calathea patterns — short branching bars vs continuous pinstripes or rounded ovals.