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care sheet for Selaginella kraussiana, commonly known as "club moss," when grown in a terrarium:

  • Lighting: Selaginella kraussiana prefers moderate to bright indirect light. It can tolerate some direct sunlight, but it's best to provide filtered or diffused light in a terrarium to avoid scorching the leaves.

  • Temperature: Selaginella kraussiana prefers a temperature range of 65-75°F (18-24°C), making it suitable for most indoor environments. Avoid placing it near drafts or heat sources like radiators.

  • Humidity: Selaginella kraussiana thrives in high humidity environments, making it well-suited for terrariums. Aim for humidity levels of 50-70% by misting the terrarium regularly or using a humidifier.

  • Watering: Keep the soil consistently moist but not waterlogged. Selaginella kraussiana prefers slightly acidic to neutral soil with good drainage. Avoid letting the terrarium sit in standing water, as it can cause root rot.

  • Soil: Use a well-draining, peat-based soil mix with added perlite or vermiculite to promote good drainage. Avoid using regular potting soil, as it can retain too much moisture and lead to root rot.

  • Fertilization: Selaginella kraussiana doesn't require much fertilization. You can use a diluted, balanced liquid fertilizer once every 2-4 weeks during the growing season (spring and summer) at half the recommended strength.

  • Pruning: Trim back any yellow or dead leaves regularly to maintain a tidy appearance. You can also pinch back the tips of the stems to encourage bushier growth.

  • Terrarium Setup: Selaginella kraussiana can be grown in a closed or open terrarium. If using a closed terrarium, make sure to monitor the humidity levels regularly and provide proper ventilation to prevent mold or fungal growth. If using an open terrarium, mist the plant regularly to maintain high humidity levels.

  • Pests and Diseases: Selaginella kraussiana is relatively resistant to pests, but it can occasionally suffer from issues like spider mites or mealybugs. Keep an eye out for any signs of infestation and treat promptly with insecticidal soap or neem oil.

  • Propagation: Selaginella kraussiana can be propagated through spores, but it's more commonly propagated through stem cuttings. Simply snip off a healthy stem with leaves and plant it in moist soil or moss in the terrarium. Keep it consistently moist until it establishes roots.

With proper care and attention to its environmental needs, Selaginella kraussiana can thrive and make a beautiful addition to a terrarium setup. Happy terrarium gardening!

Krauss' Spike moss - Selaginella kraussiana - Rooted

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