Calathea (prayer plant)
Calathea spp. (many species now reclassified to Goeppertia)
Tropical, foliage-focused houseplant with striking patterned leaves; prefers bright indirect light, high humidity, and evenly moist, well-draining soil.
Pet-Friendly Plant
Toxicity: non toxic
Calathea (Goeppertia) is considered non-toxic to cats and dogs; ingestion may cause mild stomach upset but is not poisonous.
🌱Care Requirements
Light
Place the Calathea in bright, indirect light—near an east- or north-facing window or a few metres back from a south/west window. Avoid direct sun which scorches leaves; rotate occasionally for even growth.
Water
Keep soil evenly moist but not waterlogged. Water when the top 1–2 cm (0.5–1 in) of soil feels dry. Use room-temperature, filtered or rainwater if possible to avoid leaf tip browning from salts.
Humidity
Requires high humidity (60%+). Use a humidifier, pebble tray, grouped plants, or frequent misting. Avoid placing near dry heat sources like radiators or vents.
Temperature
Optimal 16–30°C (61–86°F). Avoid drafts and temperatures below 15°C (59°F) which cause stress and slowed growth.
🔧Common Problems & Solutions
Brown leaf tips or edges
Cause: Low humidity, hard water, or salt build-up in soil
Solution: Increase humidity, use filtered or distilled water, flush potting mix occasionally and trim damaged tips.
Leaves curl or fold and pale
Cause: Underwatering, low humidity, or cold drafts
Solution: Check soil moisture and water thoroughly when top 1–2 cm are dry; raise humidity and remove from drafts.
Yellowing lower leaves
Cause: Overwatering or poor drainage leading to root stress
Solution: Allow soil to dry slightly between waterings, improve drainage, and repot into fresh mix if root rot suspected.
Crispy, brown patches on leaves
Cause: Direct sun exposure or heat stress
Solution: Move to shadier spot with bright, indirect light and avoid hot windowsills; trim damaged tissue.
Spider mites or mealybugs
Cause: Dry indoor air and lack of air circulation
Solution: Increase humidity, isolate plant, wipe leaves and treat with insecticidal soap or neem oil; repeat treatments as needed.
✂️How to Propagate Calathea (prayer plant)
Propagate by division in spring or early summer. Remove plant from pot, gently tease apart root ball into sections with several stems and healthy roots. Replant divisions in fresh, fast-draining, peat-rich potting mix, keep evenly moist and shaded until established.
🌍Origin & Background
Family: Marantaceae
Native to: Tropical Central and South America, especially Brazil and Colombia
Natural Habitat: Understory of humid tropical forests with dappled light, consistent moisture and high humidity, growing in rich, well-draining organic soils.
🗓Seasonal Care Guide
Winter
Reduce watering frequency; keep soil slightly drier but not bone dry. Maintain high humidity and protect from cold drafts and heater blow.
Spring
Increase watering as growth resumes, begin light feeding monthly, and consider repotting or division if rootbound.
Summer
Keep evenly moist and maintain high humidity. Provide bright indirect light and ensure good air circulation to reduce pests.
Fall
Gradually reduce feeding and watering as growth slows. Monitor humidity and avoid sudden temperature drops near windows.
❓Frequently Asked Questions
How often should I water my Calathea?
Water when the top 1–2 cm of soil dries—typically every 3–14 days depending on light, pot size and season.
Why are my Calathea leaves turning brown?
Common causes are low humidity, hard water salts, direct sun or underwatering; increase humidity and use filtered water.
Is Calathea toxic to pets?
No, Calathea (Goeppertia) is considered non-toxic to cats and dogs, though ingestion may cause mild stomach upset.
Can I propagate Calathea from cuttings?
Cuttings are generally not successful; propagate by division of root ball during repotting in spring.
What soil is best for Calathea?
Use a loose, peat-rich, well-draining mix with good organic matter to retain moisture but avoid waterlogging.
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Last updated: 11/7/2025