Rattlesnake Plant
Goeppertia insignis
Narrow, wavy-edged leaves patterned with dark green ellipses on a lighter background, plus deep purple undersides. Leaves lift at night and settle by day. Keep humidity high and water quality clean for the cleanest markings.
Light
Bright Indirect
Water
Moderate
Difficulty
Moderate
Humidity
High
Pet Friendly
This plant is considered non-toxic to cats, dogs, and horses, making it an excellent choice for pet owners.
Care Notes
Light
Provide bright, filtered light. Direct sun bleaches the pattern and leaves burn marks.
Water
Keep soil evenly moist, never waterlogged. Distilled or rainwater helps if your tap water is heavy in fluoride or chlorine. Always use a pot with drainage holes.
Soil
A peat-based mix that holds moisture without staying soggy is ideal. Empty the saucer after watering so roots do not sit wet.
Humidity & Temperature
Keep humidity above 50% with a humidifier or pebble tray. Aim for about 65–75°F and avoid cold drafts and sudden temperature swings.
Common Issues
Crispy edges usually mean dry air or hard water. Faded spots often mean too much sun. Wipe leaves with a damp cloth to remove dust and keep pores clear.
In-Depth Care & Growth
Feeding & Soil
Fertilizer
Balanced liquid houseplant fertilizer
Soil
A well-draining, peat-based potting mix that retains moisture without becoming soggy.
Physical Attributes
Mature Size
1.5 to 2.5 feet tall
Growth Rate
Moderate
Propagation
Division of the root clump during the spring repotting process.
Common Varieties
Goeppertia insignis is often found under its former scientific name
Long lance-shaped wavy leaves with alternating dark green splotches on a light green surface and deep purple undersides. Still sold as Calathea lancifolia.
Calathea lancifolia
Long slender wavy-edged leaves with alternating dark green spots on a pale green surface and deep purple undersides.