How often should I water a calathea?

Keep the soil lightly and evenly moist — water when the top half-inch is dry, usually every 5–7 days. Don’t let it dry out hard like a succulent, and don’t leave it soggy. Use filtered, distilled, or rainwater, since calatheas are sensitive to tap-water chemicals.

Are calatheas toxic to cats and dogs?

No — calatheas are non-toxic to both cats and dogs per the ASPCA, making them one of the few genuinely pet-safe statement plants. A big mouthful might cause a mild upset like any plant, but there’s nothing poisonous in it. You can confirm this and find other safe plants at the free tool at /pet-safe.

Why are my calathea leaves curling?

Curling that doesn’t open by day means it’s too dry — thirsty soil or parched air. Water it and raise the humidity. A gentle nightly curl that opens each morning is normal: it’s the “prayer plant” rhythm and a sign the plant is healthy.

Calathea Care: How Often to Water + Are They Pet-Safe?

Calatheas have the most beautiful foliage of any common houseplant and the shortest temper. The trade-off is honest: stunning patterned leaves that fold up at night like praying hands, in exchange for fussiness about water, humidity, and what comes out of your tap. The pay-off, if you want it, is real.

How often to water a calathea

Calatheas want their soil kept lightly and evenly moist — not soggy, not dried out. Water when the top half-inch is dry, which usually lands somewhere around every 5–7 days, more often in summer and warmth. Unlike most plants on this site, you can’t just let it dry out hard between drinks; a full dry-out browns the edges and the leaves curl in protest.

The catch is water quality. Calatheas are notably sensitive to the fluoride, chlorine, and salts in tap water, which show up as brown leaf edges. Filtered, distilled, or rainwater makes a real difference — for this plant it’s not fussiness, it’s the single biggest fix for the most common complaint.

Light

Medium, indirect light is the sweet spot. Calatheas grow on the shaded forest floor, so direct sun is actively harmful — it bleaches the patterns and scorches the leaves, washing out the very colours you bought it for. An east window, or a few feet back from a brighter one, suits them.

Too little light, though, and the markings fade and the plant sulks. Bright but indirect, with no direct beam ever hitting the leaves, keeps the patterns vivid. The nightly leaf-folding (the “prayer plant” move) is normal and a good sign the plant is happy.

Why is my calathea dying?

Brown, crispy leaf edges are the signature calathea complaint, and the usual culprits are dry air and tap water. Raise the humidity and switch to filtered or distilled water; existing brown edges won’t turn green again, so trim them and judge by the new growth.

Curling leaves that don’t unfurl by day mean it’s too dry — either thirsty soil or parched air. A good drink and more humidity usually relax them. (A gentle nightly curl that opens each morning, by contrast, is just the plant’s normal rhythm.)

Yellowing leaves point to overwatering or soggy soil — the line between “evenly moist” and “waterlogged” is narrow with calatheas. Make sure the pot drains and the soil isn’t staying wet for days.

Keeping it alive when you share a home

Calathea is the high-maintenance member of a shared collection, so it benefits most from one clear owner rather than a committee. Its needs are specific — filtered water, steady moisture, real humidity — and they’re easy to get wrong when several people each do their own version of “looking after it.”

If you do share it, the thing to write down isn’t just when it was watered but how: filtered water, not tap. A grouping with other plants, or a spot in a naturally humid room like a bright bathroom, does a lot of the humidity work for you and takes some pressure off the schedule. (Family Greenhouse can hold those care notes against the plant so they don’t live only in one person’s head.)

The honest bit

My take: the good news that makes calathea worth the trouble — it’s genuinely pet-safe. The ASPCA lists calatheas as non-toxic to both cats and dogs, which is rare for a plant this showy. If you’ve got a leaf-chewing cat and you’re tired of hanging everything out of reach, a calathea is one of the few statement plants you can put at floor level without worry.

So the honest pitch is this: calathea asks more of you than almost anything else here, but it pays you back with both the best foliage and a clean bill of health for your pets. If pet safety is the deciding factor, the free checker at /pet-safe confirms it — and lists other safe choices if you’d rather start with something more forgiving.

Calathea FAQ

How often should I water a calathea?: Keep the soil lightly and evenly moist — water when the top half-inch is dry, usually every 5–7 days. Don’t let it dry out hard like a succulent, and don’t leave it soggy. Use filtered, distilled, or rainwater, since calatheas are sensitive to tap-water chemicals.
Why are my calathea’s leaves turning brown and crispy at the edges?: The two usual causes are dry air and minerals (fluoride, chlorine, salts) in tap water. Raise the humidity and switch to filtered or distilled water. Existing brown edges won’t recover — trim them and watch the new growth come in clean.
Are calatheas toxic to cats and dogs?: No — calatheas are non-toxic to both cats and dogs per the ASPCA, making them one of the few genuinely pet-safe statement plants. A big mouthful might cause a mild upset like any plant, but there’s nothing poisonous in it. You can confirm this and find other safe plants at the free tool at /pet-safe.
Why are my calathea leaves curling?: Curling that doesn’t open by day means it’s too dry — thirsty soil or parched air. Water it and raise the humidity. A gentle nightly curl that opens each morning is normal: it’s the “prayer plant” rhythm and a sign the plant is healthy.

Calathea care