How to Grow Spikemoss, Peacock fern, Tamarisk fern

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Spikemoss, Peacock fern, Tamarisk fern

Selaginella tamariscina

herb

Selaginella tamariscina is a delicate, feathery fern-like plant that belongs to the clubmoss family (Lycopodiophyta) rather than true ferns. It is prized as an ornamental houseplant and ground cover in terrariums and shaded gardens, known for its lacy, soft fronds that can range from bright green to bronze-red depending on growing conditions. The plant is also used in traditional Asian medicine and is valued for its aesthetic elegance in botanical collections.

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Example Spikemoss, Peacock fern, Tamarisk fern timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Spikemoss, Peacock fern, Tamarisk fern

    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, Peacock fern, Tamarisk fern

    Around Apr 25

    ≈ 8 days after planting

Sample dates for Pittsburgh, PA. Sign up to get exact Spikemoss, Peacock fern, Tamarisk fern dates for your own zip code.

Growing Conditions

☀️
Sun: Bright, indirect light; 2-4 hours of filtered light daily; avoid direct sun which can scorch fronds
💧
Water: Keep soil consistently moist but not waterlogged. Water when top 0.5 inches of soil feels dry. Prefers high humidity (60-80%); mist regularly or use a pebble tray with water.
📏
Spacing: 6-12 inches
📅
Days to maturity: Variable; establishes in 8-12 weeks
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Planting depth: Do not bury rhizome; plant at soil surface or slightly above

Soil

Type: Well-draining, moisture-retentive peat-based or orchid bark potting mix
pH: 5.5-7.0
Amendments:
Sphagnum moss perlite coconut coir orchid bark

Growing Zones

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Thrives in zones 9b-11; grow indoors in cooler climates

9b 10a 10b 11a 11b

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Growth Stages

1

Establishment

4-6 weeks

Young plant showing small, tightly clustered fronds emerging from rhizomes

Maintain high humidity and consistent moisture; keep out of direct sun; use sterile potting mix to prevent fungal issues

2

Vegetative Growth

8-12 weeks

Fronds lengthen and branch, creating the characteristic feathery, fern-like appearance with multiple branches

Continue misting and maintaining humidity; ensure bright, indirect light; do not fertilize heavily

3

Mature Growth

Ongoing with proper care

Plant reaches full size with dense, layered frond structure; colors may intensify if light conditions are optimal

Reduce watering frequency slightly as plant is established; maintain humidity; occasional feeding with diluted liquid fertilizer

4

Senescence

Occurs if conditions deteriorate

Lower fronds may brown or become sparse; plant may decline if conditions become too dry or light insufficient

Remove dead fronds carefully; increase humidity and check watering schedule; consider refreshing potting mix annually

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Dry-loving succulents Cactus Drought-tolerant plants Direct heat vents

Common Pests

  • Increase humidity significantly; spray with water; use neem oil or insecticidal soap if severe; avoid chemical pesticides which can damage delicate fronds

  • Remove with cotton swab dipped in rubbing alcohol; spray with insecticidal soap; isolate infected plant

  • Reduce watering frequency; improve drainage; repot into fresh, sterile soil; remove affected roots

  • Hand-remove visible scales; treat with horticultural oil or insecticidal soap

Uses

💊

Traditional Asian herbal medicine

Medicinal

Selaginella tamariscina is used in Chinese Traditional Medicine (where it's called 卷柏 or Juan Bai) to treat coughs, fever, and inflammation. The plant contains bioactive compounds that have been studied for immune-supporting and antioxidant properties. [source]

🏠

Ornamental houseplant and terrarium specimen

Household

Prized in interior design for its delicate, feathery foliage and elegant appearance. Ideal for tropical terrariums, glass cases, and humid indoor gardens where it adds fine texture and ethereal beauty. [source]

🦋

Moisture-loving ecosystem component

Wildlife

In humid woodland settings, provides microhabitat structure for small arthropods and contributes to moisture retention in soil ecosystems. [source]

🍳

Culinary garnish in Asian cuisine

Culinary

In some East Asian food traditions, fresh fronds are used as an elegant garnish for salads and dishes, prized for visual appeal rather than significant nutritional contribution. [source]

🎨

Floral and pressed plant designs

Craft

The delicate fronds press beautifully and are used in botanical art, pressed flower arrangements, and decorative resin crafts. [source]

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

Harvest Tips

Selaginella tamariscina is not harvested for culinary purposes in typical gardening. In traditional medicine contexts, aerial portions are harvested year-round by carefully cutting or pinching fronds; allow plant to recover before harvesting again. For medicinal use, harvest mature plants during growing season (spring-summer).

Fun Facts

  • 🌱 Selaginella tamariscina is often called the 'resurrection plant' in some regions because it can survive extreme desiccation and rehydrate dramatically when water is reintroduced—a phenomenon called poikilohydry.
  • 🌱 Unlike true ferns, Selaginella belongs to an ancient group of vascular plants (clubmosses) that have existed for over 300 million years, predating flowering plants.
  • 🌱 The plant's fronds can shift color from vibrant green to russet-bronze depending on light intensity and environmental stress, making it a dynamic and color-changing houseplant.

Gardening Terms

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