Selaginella uncinata

Selaginella uncinata, commonly known as the peacock fern, blue spikemoss, or iridescent Selaginella, is a striking and unusual plant from the group of lycophytes—primitive vascular plants related to ferns.

Key Features:

• Foliage: Its delicate, finely divided leaves display vivid blue-green iridescence that changes with the angle of the light, giving it a metallic or shimmering effect.

• Growth habit: It has a low-growing, creeping or spreading form, making it ideal as a ground cover in humid environments or as a terrarium plant.

• Natural habitat: Native to tropical regions of Asia (like China and Vietnam), it thrives in the shaded, moist undergrowth of forests.

Growing Conditions:

• Light: Prefers bright, indirect light. Avoid direct sunlight, which can scorch the leaves.

• Humidity: High humidity is essential—this plant loves moist air, making it perfect for terrariums or humid greenhouses.

• Temperature: Ideally between 65–75°F (18–24°C). It does not tolerate cold or frost.

• Soil: Needs a light, well-draining, slightly acidic substrate rich in organic matter.

• Watering: Keep the soil consistently moist, but avoid waterlogging. Do not let the soil dry out completely.

Notes:

• It is sometimes confused with Selaginella willdenowii, another iridescent species.

• This plant struggles in dry indoor air, especially in winter. It's best kept in a closed terrarium or under a humidity dome if grown indoors.