Guide
How to Care for Calathea (Goeppertia)
The short answer
Calatheas (now botanically Goeppertia) are tropical understory plants: they do not tolerate full sun, preferring limited sun to bright shade, and they need soil kept moist but not wet during the growing season with high humidity around the leaves. NC State Extension recommends standing the pot in a bed of wet pebbles or growing the plant in a humidified room.
Browning or curling of the leaf edges and tips — the most common calathea complaint — results from low humidity. Keep room temperatures between 65 and 75°F and avoid sudden temperature changes.
What a Calathea Is
Calathea is a group of tropical foliage plants prized for patterned leaves — the rattlesnake plant (Goeppertia insignis) is a well-known example. Many species have been reclassified from Calathea into Goeppertia, so you may see either name on plant tags. Per NC State Extension, they are listed as non-toxic to cats and dogs.
Light
Calatheas do not tolerate full sun. They will take early morning sun or diffused sun, but prefer limited-sun to bright-shade locations. Harsh direct light fades and scorches the patterned leaves.
Watering, Soil, and Drainage
During the growing season, water regularly to keep the soil moist but not wet. In winter, reduce watering frequency as growth slows. Use a well-drained, peaty potting mixture high in organic matter, in a pot with drainage holes.
Humidity and Temperature
High air moisture is the make-or-break factor. Stand the pot on a tray of wet pebbles or grow the plant in a humidified room. Keep room temperatures between 65 and 75°F, and protect the plant from sudden temperature changes.
✔ A pebble tray only works if the pot sits on the pebbles above the waterline — the goal is evaporating moisture around the leaves, not wet roots.
Propagation Basics
- 1Divide at repotting — Division is the recommended method: split a mature clump into sections, each with roots and shoots, and pot them separately.
Common Problems
- Brown or curling leaf edges and tips: low humidity — raise humidity with a pebble tray or humidifier
- Limp or declining plant in winter: overwatering while growth is slow — cut back the watering frequency
- Faded leaf pattern: too much direct sun — move to bright shade
Sources
Reviewed 2026-07-18. We cite university Extension, government, and established horticultural sources — and never invent pesticide rates or dangerous treatments.
- NC State Extension Gardener Plant Toolbox — Goeppertia insignis (Rattlesnake Plant) — No full sun / bright-shade preference, keep soil moist not wet and reduce in winter, well-drained peaty mix, wet-pebble tray or humidified room, 65–75°F and no sudden temperature changes, propagation by division, brown edges from low humidity, non-toxic to pets