Rattlesnake Calathea (Calathea insignis)

(c) Trevor Van Loon, some rights reserved (CC BY)

iNaturalist

Rattlesnake Calathea Plant Care

Calathea insignis Petersen

One look at the striking dark green leaves with pink stripes and you'll know this plant is a Calathea insignis, originating from Brazil. Its unique foliage pattern and vibrant colors make it a highly sought-after addition to any plant collector's indoor garden.

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Water

Every 7–10 days

Light

Bright indirect

Temp

65–80°F

Humidity

50–70%

What Is the Rattlesnake Calathea?

Rattlesnake Calathea (Calathea insignis) belongs to the Marantaceae family within the Calathea genus. Rattlesnake Calathea is also known as Rattlesnake Plant, Calathea.

Rattlesnake Calathea displays a climbing, vining growth habit, reaching up to 2.5 inches tall with a spread of approximately 2.5 inches. Rattlesnake Calathea produces none.

Leaf size: approximately 8 inches.

How Often Should You Water a Rattlesnake Calathea?

Calathea insignis requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watering Frequency

Every 7–10 days

Let soil partially dry between waterings

What Light Does the Rattlesnake Calathea Need?

Rattlesnake Calathea thrives in bright indirect light conditions. The optimal light range is 250–500 lux. Avoid placing Rattlesnake Calathea in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Bright indirect

250–500 lux

What Temperature and Humidity Does the Rattlesnake Calathea Prefer?

Calathea insignis grows best at temperatures between 65°F and 80°F. Rattlesnake Calathea prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Temperature

65–80°F

Humidity

50–70%

What Soil Mix Works Best for a Rattlesnake Calathea?

Well-draining mix with perlite and peat. Good drainage is essential for Rattlesnake Calathea to prevent waterlogging, which leads to root rot and fungal issues.

How Do You Repot a Rattlesnake Calathea?

Calathea insignis should be repotted every 1-2 years in the spring.. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

How Do You Propagate a Rattlesnake Calathea?

Rattlesnake Calathea can be propagated through stem cuttings or division. Similar propagation techniques also apply to rattlesnake plant plant care, which shares the same genus.

Fertilizing

Every 4 months

During the growing season

Is the Rattlesnake Calathea Toxic to Pets and Children?

Toxic to Pets & Children

Toxic to cats and dogs

What Pests and Diseases Affect the Rattlesnake Calathea?

Rattlesnake Calathea is susceptible to mealybugs, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

What USDA Hardiness Zone Does the Rattlesnake Calathea Need?

Rattlesnake Calathea grows outdoors in USDA Zone 13b. In cooler regions, grow Rattlesnake Calathea as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 13b

Keep exploring plants

Rattlesnake Calathea is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Calathea genus — compare its care with other Calathea species on PlantoScan.

Rattlesnake Calathea thrives in bright light and direct sun — see other bright-light plants.

More Calathea Species

Other Calathea species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

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