How to Grow Spikemoss, Braun's Selaginella

Spikemoss, Braun's Selaginella

Selaginella braunii

herb

Selaginella braunii is a delicate, evergreen moss-like plant with feathery, fern-like foliage that forms dense mats of fine, bright green fronds. Despite its appearance, it is not a true moss or fern but a primitive vascular plant in the Selaginellaceae family. It is prized as an ornamental houseplant and vivarium plant for its intricate, lacy texture and ability to thrive in humid, shaded environments.

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Example Spikemoss, Braun's Selaginella timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Spikemoss, Braun's Selaginella

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Spikemoss, Braun's Selaginella

    Around Apr 21

    ≈ 4 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Spikemoss, Braun's Selaginella dates for your own zip code.

Growing Conditions

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Sun: Indirect light, bright but filtered; avoids direct sunlight which can scorch foliage; thrives in low to moderate light (3-5 hours of indirect light daily)
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Water: Keep consistently moist but not waterlogged; prefers high humidity (60-80%); mist regularly or place on a pebble tray with water; water when the top of the soil begins to dry; use distilled or rainwater to avoid mineral buildup
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Spacing: 6-12 inches between plants or clusters, depending on desired density and container size inches
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Days to maturity: Not applicable; growth is continuous; mature appearance achieved in 4-8 weeks under optimal conditions
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Planting depth: Plant at soil surface or slightly buried; does not require deep planting; press gently into moist substrate

Soil

Type: Well-draining, moisture-retentive medium such as a mix of peat moss, orchid bark, and perlite or a commercial terrarium substrate
pH: 5.5-6.5
Amendments:
Peat moss or coconut coir for moisture retention Orchid bark or horticultural charcoal for aeration Perlite for drainage Sphagnum moss for humidity-loving environments

Growth Stages

1

Establishment

2-4 weeks

New plantlets or cuttings develop roots and establish in the substrate; foliage remains compact and emerald green

Maintain high humidity and consistent moisture; avoid direct sun; mist daily; keep substrate warm (65-75°F)

2

Vegetative Growth

Ongoing; 4-12 weeks for notable growth

Plant produces new fronds and lateral branching, creating a fuller, denser mat of feathery foliage

Continue regular misting; maintain humidity above 60%; provide bright, indirect light; pinch back overgrown stems to encourage bushiness

3

Maturation

Continuous

Plant reaches full density and form, creating a lush, intricate texture; may develop reproductive structures (sporangia) under ideal conditions

Maintain consistent watering and humidity; reduce fertilizer if applied; trim dead or yellowing fronds to maintain appearance

4

Propagation

Rooting occurs within 3-6 weeks

Plant produces runners or can be divided into sections; individual frond segments can develop into new plants in high-humidity environments

Separate runners or divide clumps; plant divisions shallowly in moist substrate; maintain high humidity for new growth

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Cacti and succulents (incompatible water needs) Air plants (Tillandsia) in closed containers (compete for humid space) Dry-loving herbs (Lavender, Rosemary)

Common Pests

  • Increase humidity; mist foliage regularly; isolate affected plants; treat with insecticidal soap or neem oil if severe; ensure good air circulation

  • Inspect regularly; remove with cotton swab dipped in isopropyl alcohol; spray with insecticidal soap; quarantine infested plants

  • Remove manually; treat with horticultural oil or insecticidal soap; maintain plant vigor through proper humidity and watering

  • Allow soil surface to dry slightly between waterings; use yellow sticky traps; apply fungus gnat control products if infestation is severe

Uses

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Indoor Ornamental Display

Household

Selaginella braunii is a popular terrarium and houseplant specimen prized for its delicate, fern-like appearance and ability to create a lush, tropical feel in confined spaces such as closed terrariums, vivariums, and desktop displays. [source]

🎨

Vivarium and Paludarium Plant

Craft

Excellent for amphibian and reptile vivariums, paludariums, and aquatic plant tanks due to its tolerance of high humidity and moisture-rich environments; provides naturalistic landscaping for exotic animal enclosures. [source]

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Microhabitat for Small Invertebrates

Wildlife

The dense, intricate fronds provide shelter and microhabitats for small arthropods, making it valuable in bioactive terrariums and naturalistic planted enclosures for insects and small reptiles. [source]

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Traditional Herbal Medicine

Medicinal

In traditional Chinese medicine and other Asian folk traditions, Selaginella species have been used to treat inflammation, fever, and respiratory conditions; contains compounds with potential antioxidant and anti-inflammatory properties. [source]

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Edible Decorative Garnish

Culinary

Occasionally used as a delicate, edible garnish in high-end culinary presentations and molecular gastronomy; adds textural interest and a subtle herbal note to plated dishes. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Not harvested in the traditional sense; propagate by dividing mature plants or taking stem cuttings (3-5 inches long) and rooting in high-humidity conditions; separation of runners or offshoots is the easiest propagation method; for medicinal or decorative use of fronds, trim as needed without removing more than one-third of total foliage at once

Fun Facts

  • 🌱 Selaginella braunii is one of the few plants that can 'resurrect' or enter a dormant state during dry periods, dramatically curling up and becoming brittle, then unfurling and reviving within hours of being watered—a trait called poikilohydry.
  • 🌱 Despite looking like a moss or fern, Selaginella is an ancient plant lineage (Selaginellophyta) that has remained virtually unchanged for over 300 million years, making it a 'living fossil' that predates flowering plants.
  • 🌱 The name 'Spikemoss' refers to the spike-like reproductive structures (strobili) that appear along the stems under optimal growing conditions, which contain both male and female spores—a primitive reproductive strategy rarely seen in modern plants.

Gardening Terms

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