Rattlesnake plant guide
Goeppertia insignis, also called Calathea lancifolia, Calathea insignis, rattlesnake calathea
Published 2026-11-08
Quick care
- Light
- Medium
- Water
- When the top 2 cm (1 in) of soil is dry. Never let it dry out.
- Humidity
- High. Dry winter air crisps the leaf edges.
- Temperature
- 18 to 27°C (65 to 80°F). Keep above 15°C (60°F).
- Soil
- Light, airy houseplant mix that holds some moisture
- Feeding
- Half-strength fertilizer monthly in spring and summer
- Pets
- Non-toxic to cats and dogs
- Difficulty
- Fussy
- Mature size
- 35 to 50 cm (14 to 20 in) tall
- Propagation
- Divide the clump when you repot
- Where to buy
- Common
This page covers what makes rattlesnake plant different. For light, water, soil, pests, and the rest, read the calathea care guide.
What it is
Rattlesnake plant has long, narrow, wavy leaves. The top is light green with rows of dark green spots and ovals, like snakeskin. The underside is purple-red. Select-A-Plant notes the wavy edges, the spotted pattern, and that it needs heat and humidity. It is sold as Calathea lancifolia, now listed as Goeppertia insignis.
How to tell it apart
| Plant | Leaves | The tell |
|---|---|---|
| Rattlesnake plant | Long, narrow, wavy, dark spots | Wavy edges and upright, sword-like leaves |
| Rabbit tracks prayer plant | Short, oval, gray-green with blotches | Low and spreading, not upright |
| Peacock plant | Oval, thin, peacock feather pattern | Rounder leaves with a feather pattern |
Care differences
Rattlesnake plant is one of the toughest calatheas. It handles drier air and a missed watering better than orbifolia or ‘White Fusion’. It still prefers 40% humidity or higher.
It likes warmth. Keep it away from cold windows and drafts.
Grow it by division
Divide the clump in spring so each piece has leaves and roots.
Buying it
Rattlesnake plant is common at garden centers and big box stores. Look for upright leaves with crisp spots and no brown edges. It is a good first calathea.