Selaginella sp. Rainbow

Selaginella sp. Rainbow

Selaginella sp. Rainbow, commonly known as Rainbow Spike Moss, is a rare and highly prized tropical plant admired for its remarkable iridescent foliage. Depending on lighting conditions and viewing angle, the delicate fronds can display stunning shades of blue, purple, pink, green, and metallic bronze. Despite its moss-like appearance, it is not a true moss but a primitive vascular plant belonging to the ancient Selaginella lineage.

Its compact growth habit, vibrant coloration, and love for humid environments make it one of the most desirable plants for terrariums, paludariums, vivariums, and tropical plant collections.

Appearance

Rainbow Selaginella forms dense mats of finely textured foliage that spread across the substrate. The leaves are small and delicate, creating a soft carpet-like effect. Under ideal conditions, the foliage develops an iridescent sheen that changes color depending on light intensity and viewing angle.

Key Features

Rare iridescent foliage

Blue, purple, pink, and green color reflections

Dense creeping growth habit

Excellent ground cover plant

Ideal for tropical terrariums

Soft moss-like appearance

Compact and easy to shape

Terrarium Use

Selaginella sp. Rainbow is considered one of the best plants for high-humidity terrariums due to its moisture-loving nature and compact growth.

Ideal Terrarium Applications

Closed terrariums

Tropical vivariums

Paludariums

Mossariums

Dart frog enclosures

Bioactive setups

Miniature rainforest displays

Benefits in Terrariums

Creates a vibrant living carpet

Enhances humidity retention

Adds unique iridescent coloration

Fills empty spaces naturally

Provides shelter for microfauna

Pairs beautifully with Begonias, Sonerilas, Peperomias, and ferns

In enclosed terrariums, the plant often develops stronger coloration and denser growth due to stable humidity levels.

Care Requirements

Lighting

Low to medium indirect light

Bright filtered light enhances coloration

Avoid direct sunlight

Excessive light can fade the iridescent effect and scorch delicate foliage.

Temperature

Ideal Range: 18°C – 27°C

Minimum Recommended: 15°C

Prefers stable tropical temperatures

Humidity

Ideal Humidity: 70–95%

Thrives in consistently humid environments

Best suited for enclosed setups

Low humidity can quickly lead to browning and drying of the foliage.

Watering

Keep the substrate consistently moist at all times.

Important guidelines:

Never allow the soil to dry completely

Avoid standing water around roots

Use moisture-retentive substrate

Water with room-temperature water

Substrate Requirements

Rainbow Selaginella grows best in loose, moisture-retentive substrates.

Recommended mix:

Coco peat

Sphagnum moss

Leaf litter

Fine orchid bark

Perlite

The substrate should remain moist while maintaining adequate aeration.

Growth and Maintenance

This plant spreads gradually by creeping stems and can form beautiful carpets over time.

Maintenance Tips

Trim overgrown sections to maintain shape

Remove damaged or browned foliage

Maintain stable humidity levels

Ensure gentle airflow in enclosed terrariums

Avoid sudden environmental changes

When healthy, the plant remains lush and colorful throughout the year.

Why Choose Selaginella sp. Rainbow?

Selaginella sp. Rainbow is an exceptional choice for hobbyists seeking a colorful, unusual, and humidity-loving plant. Its mesmerizing iridescent foliage, compact growth, and ability to create lush living carpets make it a standout addition to terrariums, vivariums, paludariums, and tropical plant displays.