Calathea lancifolia 'Insignis' – The Rattlesnake Plant

The Rattlesnake Plant (Calathea lancifolia 'Insignis') is a striking tropical beauty with long, lance-shaped leaves patterned in deep green markings that resemble the scales of a rattlesnake. Flip the leaves over, and you’ll find a rich purple underside—an extra splash of color that makes this plant truly stand out in terrariums and indoor displays.

Appearance

Its leaves can grow up to 45 cm long, with wavy edges and bold, dark green spots that contrast beautifully against the lighter green background. The plant grows in a rosette-like clump, adding height and texture to terrarium landscapes.

Suitability for Terrariums

Calathea lancifolia is an excellent terrarium choice thanks to its love of high humidity and evenly moist soil. It’s ideal for taller terrariums or vivariums where its upright leaves have space to stretch. In smaller terrariums, it may need regular trimming to prevent

overcrowding.

Pet & Reptile Safety

The Rattlesnake Plant is non-toxic to pets and reptiles, making it a safe and beautiful option for enclosures where animals may interact with foliage. Its broad leaves also provide natural hiding and climbing spots for small reptiles or amphibians.

Care Tips

• Light: Prefers bright, indirect light but tolerates lower light levels (avoid direct sun, which can scorch leaves).

• Water: Keep soil evenly moist but not waterlogged. Use filtered or rainwater if possible, as Calatheas can be sensitive to hard tap water.

• Humidity: Needs high humidity (60%+). Closed terrariums or frequent misting will keep it thriving.

• Temperature: Likes warmth—avoid drafts and cold air.