Calathea
Calatheas are treasured for their strikingly patterned, paddle-shaped leaves, and many of them fold their leaves up at night like hands in prayer. They're beautiful but fussy — the two things that matter most are humidity and water quality.
Care basics
- Light: Bright but indirect light — out of direct sun, which scorches the leaves. A north- or east-facing window is ideal.
- Water: Keep the potting mix evenly moist during the growing season, but don't overwater — let the surface dry slightly between waterings and never let it sit in water. Reduce watering in winter.
- Water quality: Calatheas are sensitive to fluoride and chemicals in tap water, which cause browning leaf tips. Rainwater, distilled water, or tap water left to stand are better choices.
- Humidity: Prefers high humidity (roughly 50–60%). A humidifier, pebble tray, or a bathroom location helps.
- Temperature: Warm, steady temperatures; avoid cold drafts and hot radiators.
- Soil: Free-draining but moisture-retentive potting mix.
The 3 most common problems
1. Brown, crispy leaf tips and edges
This is the classic calathea complaint, and it's nearly always about low humidity or fluoride/chemical build-up from tap water. The plant is sensitive to fluoride in water. Fix: Raise the humidity, and switch to distilled, filtered, or rain water. See our brown tips guide.
2. Curling leaves
Curling is usually a humidity problem, and can also come from allowing the plant to get too dry or from wrong water. Fix: Increase humidity and check watering. See our curling leaves guide.
3. Root rot from overwatering
Calatheas like moisture but will rot if the roots sit in water. Fix: Keep the soil moist-not-soggy, make sure the pot drains, and don't let it sit in a saucer of water.
Pet safety note: The ASPCA lists calathea as non-toxic to cats and dogs, making it one of the more pet-friendly showy houseplants.
A few extra tips
Calatheas are long-lived, and because they need humidity, they often do best in naturally humid rooms like kitchens and bathrooms — as long as the light is bright but indirect. The two habits that keep them happy are: don't let the roots stand in water, and don't let the potting mix dry out completely. When the plant fills its pot, repot it every few years into a fresh, free-draining but moisture-retentive mix.
Calathea at a glance
- Light: bright, indirect — out of direct sun
- Water: keep the soil evenly moist, without overwatering
- Water quality: rainwater or distilled water is best — calatheas are sensitive to fluoride in tap water
- Humidity: needs high humidity (about 50–60%)
- Watch for: brown, curling leaf edges (low humidity or tap water) and root rot (standing water)
Get the humidity and water quality right and a calathea's gorgeous leaf patterns really shine; those two factors prevent most of the problems this plant is known for. With steady humidity and the right water, calatheas are long-lived and their patterned leaves stay beautiful for years.