Plagiomnium affine, commonly known as Pearl Moss or Round-leaved Mnium, is a species of moss admired for its round, glossy green leaves that give it a lush, vibrant appearance. It is often used in terrariums, paludariums, and shaded outdoor gardens due to its aesthetic appeal and ability to create dense, soft mats.
Key Features:
- Common Name: Pearl Moss, Round-leaved Mnium
- Family: Mniaceae
- Origin: Found in temperate regions of Europe, Asia, and North America
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Appearance:
- The leaves are round and bright green, with a shiny surface that reflects light, giving them a pearly appearance when moist.
- Forms dense mats, growing close to the ground or substrate, and spreads horizontally through its rhizoids.
- When fully established, it can cover a large area with soft, cushion-like patches.
Care and Growing Conditions:
- Lighting: Prefers low to moderate light. It thrives in shaded or partially shaded conditions, which makes it an ideal plant for indoor terrariums and naturally shaded areas outdoors.
- Water: Pearl Moss requires a high-humidity environment to stay healthy and retain its vibrant appearance. Mist regularly in drier settings to maintain moisture. It prefers moist soil, but should not be completely submerged for long periods.
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Temperature:
- Ideal temperature range is 12°C to 24°C (54°F to 75°F), mimicking the cool, damp conditions of its natural habitat.
- It can tolerate cooler temperatures as long as it stays moist.
- Substrate: It grows well on moist, nutrient-rich substrates like soil, rocks, or driftwood. It can even anchor onto decaying logs or stones in a terrarium or garden setting.
- Humidity: Requires high humidity (70% or above) to thrive, which makes it perfect for enclosed terrariums or areas that can be kept consistently damp.
