Calatheas and prayer plants (Calathea/Goeppertia, Maranta and their relatives) are grown for their spectacular patterned foliage, brushstroke greens, pink veins, and purple undersides. Many fold their leaves upward at night, a charming habit that earns them the "prayer plant" name. They have a reputation for being fussy, but once you understand their three priorities, gentle light, steady moisture, and clean water, they're very rewarding.
Which prayer plant do you have?
"Prayer plant" is a family nickname, not one plant, and the differences matter for care:
- Calathea / Goeppertia (Beauty Star, Dottie, Orbifolia, Medallion, Rattlesnake): most of the patterned "calatheas" sold today are botanically Goeppertia. These are the fussiest about water quality and humidity, and they fade fastest in strong light.
- Maranta (the true prayer plant, Maranta leuconeura 'Red' or 'Lemon Lime'): low, spreading or trailing growth with the most dramatic night-time leaf folding. Slightly more tolerant of average humidity than Goeppertia, but equally allergic to soggy soil.
- Ctenanthe and Stromanthe (Never-Never Plant, Triostar): larger, tougher relatives. Stromanthe needs the brightest indirect light of the group to keep its pink colour; Ctenanthe copes with drier air better than most.
Whatever the label says, the three rules below apply to all of them; the plant-specific notes above tell you how much slack you have.
Light
Calatheas evolved on shaded rainforest floors, so they want medium, indirect light. Direct sun fades their patterns and scorches the leaves. An east window or a spot a few feet from a brighter window is ideal, if the markings look washed out, they're getting too much light.
Water
Aim to keep the soil lightly and evenly moist, never soggy, never bone dry. Here's the catch most people miss: calatheas are sensitive to the minerals and fluoride in tap water, which cause brown leaf edges. Use filtered, distilled, or rainwater, or let tap water sit out overnight before using it.
Humidity & temperature
This is where calatheas are demanding: they love high humidity (50%+). A humidifier is the most reliable fix; a pebble tray or grouping plants helps too. Keep them warm (65-80°F) and away from cold drafts and AC vents, which trigger crispy edges.
Soil & fertilizing
Use a rich but well-draining mix that holds some moisture without staying waterlogged. Feed lightly every 4-6 weeks in spring and summer with a diluted balanced fertilizer.
Diagnose it: symptom, check, fix
- Leaves curling inward — Check the soil first: if it is dry an inch down, water thoroughly. If it is moist, the cause is dry air or a cold draft; raise humidity and move it away from vents. Full walkthrough: why calathea leaves curl.
- Crispy brown edges or tips — Check your water and humidity: switch to filtered, distilled or rain water and keep humidity above 50%. Trim the dead edge with clean scissors; it will not green up again.
- Yellow lower leaves, soil stays wet for days — Check drainage and pot size: let the top inch dry, make sure the pot drains, and move to a smaller pot if the plant sits in soggy soil.
- Pattern fading or washed out — Check the light: direct sun or a very bright south window bleaches the markings. Move it a few feet back.
- Fine webbing, speckled leaves — Check the leaf undersides for spider mites, which love the dry air calatheas hate. Shower the plant, wipe the leaves, raise humidity, and repeat weekly until clear.
- Leaves not folding at night — Usually nothing; some plants move less, and very low light reduces the movement. Only worry if other symptoms appear.
Common problems & fixes
- Crispy brown edges: low humidity or mineral build-up, raise humidity and switch to filtered water.
- Faded patterns: too much light, move to a shadier spot.
- Yellowing leaves: usually overwatering.
- Leaves not moving at night: normal variation; nothing to worry about.
Are calatheas pet safe?
Calatheas and marantas are commonly listed as non-toxic to cats and dogs (ASPCA), which makes them a favorite for pet households. Still, supervise pets and discourage chewing. See more in our pet-friendly houseplants guide.
Shop Calatheas & prayer plants
Browse the full plant catalog or start with a Calathea variety pack to collect several patterns at once.
Sources
- ASPCA Animal Poison Control — Calathea (Calathea spp.): non-toxic to cats and dogs.
- ASPCA Animal Poison Control — Prayer Plant (Calathea insignis): non-toxic to cats and dogs.
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