Trailing Spike Moss
Selaginella Kraussiana
Selaginella kraussiana, commonly known as Trailing Spike Moss, is a unique and attractive plant native to Africa. Its lush, green foliage adds a touch of elegance to any indoor or outdoor space, making it a popular choice among plant enthusiasts.
Everything it needs
9 essentials at a glance
Watering
Selaginella kraussiana prefers consistently moist soil, so water it thoroughly when the top inch of soil feels dry.
During the growing season (spring and summer), water every 1-2 weeks, adjusting frequency based on humidity levels. In fall and winter, reduce watering to every 2-3 weeks. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause browning leaf tips and wilting.
Light
This plant thrives in partial shade to filtered light, making it ideal for bright indoor spaces or shaded outdoor areas.
It prefers around 4-6 hours of indirect sunlight daily and can tolerate low light conditions, but avoid direct sunlight as it can scorch the leaves.
Soil
Selaginella kraussiana prefers a well-draining, moisture-retentive soil mix with a pH of 5.5 to 6.5.
A recommended potting mix includes equal parts peat moss, perlite, and orchid bark to ensure good drainage while retaining moisture.
Humidity
This plant enjoys high humidity levels, ideally between 50-70%.
To increase humidity, mist the leaves regularly, use a pebble tray with water, or place a humidifier nearby. Signs of humidity stress include browning leaf tips and leaf drop.
Temperature
Selaginella kraussiana thrives in temperatures between 60-75°F (15-24°C) and is hardy in USDA zones 9-11.
It is sensitive to cold drafts and should be protected from temperatures below 50°F (10°C) to prevent damage.
Fertilizing
Use a balanced, water-soluble fertilizer with an NPK ratio of 20-20-20, diluted to half strength.
Fertilize every 4-6 weeks during the growing season (spring and summer) and reduce to once every 2-3 months in fall and winter. Signs of nutrient deficiency include yellowing leaves and stunted growth.
Pruning
Prune Selaginella kraussiana in early spring to remove any dead or damaged foliage and to encourage bushier growth.
Use clean, sharp scissors or pruning shears. Deadheading is not necessary, but trimming back leggy growth can improve appearance.
Repotting
Repot every 1-2 years or when the plant becomes root-bound, indicated by roots growing out of the drainage holes.
Choose a pot that is 1-2 inches larger in diameter. Carefully remove the plant from its pot, loosen the roots, and place it in fresh potting mix. Water thoroughly after repotting.
Propagation
Propagation can be achieved through division or spores.
For division, carefully separate the plant into smaller sections during repotting, ensuring each section has roots. For spore propagation, collect spores from mature plants and sow them on a moist substrate, keeping them in a humid environment until they germinate. The best time for propagation is in spring.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or insufficient light.
How to fix it
Reduce watering frequency and ensure the plant receives adequate indirect sunlight.
Browning leaf tips
Why it happens
Low humidity levels or under-watering.
How to fix it
Increase humidity through misting or using a humidifier, and adjust watering schedule.
Wilting
Why it happens
Under-watering or extreme temperature fluctuations.
How to fix it
Check soil moisture and water thoroughly; ensure stable temperatures away from drafts.
Root rot
Why it happens
Excessive moisture and poor drainage.
How to fix it
Allow the soil to dry out between waterings and ensure the pot has adequate drainage holes.
Leggy growth
Why it happens
Insufficient light.
How to fix it
Move the plant to a brighter location with indirect sunlight to encourage denser growth.
Care through the year
Spring
In spring, increase watering frequency as the plant begins to actively grow. Fertilize every 4-6 weeks with a balanced fertilizer to encourage new growth.
Summer
During summer, maintain consistent moisture and humidity levels. Keep the plant in a location with filtered light to prevent leaf burn.
Fall
In fall, gradually reduce watering as the plant enters dormancy. Continue to provide humidity and monitor for any signs of stress as temperatures drop.
Winter
In winter, water less frequently, allowing the soil to dry out slightly between waterings. Keep the plant in a warm location away from cold drafts.
Toxicity & Safety
Selaginella kraussiana is non-toxic to pets and children. It is safe to have around cats and dogs, with no known harmful effects from ingestion.
Good to know
How often should I water my Selaginella kraussiana?
Water your Selaginella kraussiana when the top inch of soil feels dry, typically every 1-2 weeks during the growing season and every 2-3 weeks in winter.
What light conditions are best for Trailing Spike Moss?
Trailing Spike Moss thrives in partial shade with around 4-6 hours of indirect sunlight daily. Avoid direct sunlight to prevent leaf scorch.
Can I grow Selaginella kraussiana indoors?
Yes, Selaginella kraussiana makes an excellent indoor plant, preferring bright, indirect light and high humidity levels to thrive.
What should I do if my Selaginella leaves are turning yellow?
Yellowing leaves can indicate over-watering or insufficient light. Adjust your watering schedule and ensure the plant gets enough indirect sunlight.
Is Selaginella kraussiana toxic to pets?
No, Selaginella kraussiana is non-toxic to both pets and children, making it a safe choice for households with animals.
How do I increase humidity for my Selaginella?
To increase humidity, mist the leaves regularly, use a pebble tray with water, or place a humidifier nearby to create a more suitable environment.
When is the best time to repot Selaginella kraussiana?
The best time to repot Selaginella kraussiana is every 1-2 years in early spring when the plant is actively growing and can recover quickly.
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