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How to Grow Mounted Tropical Ferns

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Mounted Tropical Ferns

Various species (e.g., Platycerium bifurcatum, Nephrolepis exaltata, Microsorum punctatum)

flower

Mounted tropical ferns are epiphytic or semi-epiphytic ferns attached to cork bark, wood slabs, or moss poles, mimicking their natural rainforest habitat where they grow on trees. These stunning living arrangements create dramatic vertical displays with cascading or upright fronds that bring tropical elegance to indoor spaces. Popular species include staghorn ferns (Platycerium), Boston ferns (Nephrolepis), and other moisture-loving varieties.

Looking for a specific variety?

Platycerium bifurcatum Nephrolepis exaltata Microsorum punctatum Asplenium nidus Platycerium ridleyi Nephrolepis cordifolia

When should you plant Mounted Tropical Ferns in your zone?

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Example Mounted Tropical Ferns timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Mounted Tropical Ferns

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. First Mounted Tropical Ferns blooms

    Mid-to-late summer

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Mounted Tropical Ferns dates for your own zip code.

Growing Conditions

☀️
Sun: Bright, indirect light; 50-70% shade; avoid direct sunlight which scorches fronds
💧
Water: High humidity (60-80%) is critical; mist daily or use pebble trays; soak mounted ferns in water for 10-15 minutes 2-3 times weekly, or use a spray bottle to keep mounting medium moist
📏
Spacing: 12-24 inches between mounted displays depending on mature frond spread inches
📅
Days to maturity: Varies by species; 6-18 months to establish and reach full decorative size
🌱
Planting depth: Secure rhizome and root ball firmly to mount using fishing line, wire, or natural twine; position at mount's center

Soil

Type: Mounting medium such as sphagnum moss, orchid bark mix, or coconut coir on cork/wood substrate
pH: 5.5-7.0
Amendments:
Sphagnum moss Orchid bark Coconut coir Tree fern fiber Peat moss

Growing Zones

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Zones 10-11 outdoors; zones 3-12 indoors with proper climate control

10a 10b 11a 11b

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Growth Stages

1

Establishment

2-4 weeks

Newly mounted fern adjusts to new substrate; minimal new frond growth; roots begin colonizing the mounting medium

Maintain consistent high humidity; mist 2-3 times daily; avoid moving the mount; keep water temperature lukewarm

2

Active Growth

2-6 months

New fronds emerge regularly; root system expands across mounting medium; plant becomes more vigorous

Maintain 60-80% humidity; soak or mist frequently; provide bright, indirect light; fertilize monthly with diluted liquid fertilizer

3

Frond Development

Ongoing, 3-12 months

Fronds lengthen and mature; characteristic shape becomes pronounced (shield fronds on staghorn ferns, feathery fronds on Boston ferns)

Support drooping fronds with soft ties if needed; maintain consistent moisture; reduce fertilizer frequency as growth stabilizes

4

Maturation & Reproduction

6+ months ongoing

Fern reaches full size; fertile fronds may appear with visible sporangia (spore cases) on undersides; cascading or architectural form fully realized

Maintain routine misting and soaking; fertilize every 4-6 weeks during growing season; prune dead fronds carefully

5

Maintenance

Indefinite

Mature mounted fern produces new fronds regularly but grows slowly; displays tropical aesthetic with minimal new growth

Continue high humidity and regular watering; clean fronds gently with distilled water; remove brown or damaged fronds at base

Companion Planting

Plan your garden →

Plant with:

Staghorn ferns (if mounting different species together) Moss poles with climbing aroids (Philodendron, Epipremnum) Air plants (Tillandsia) Orchids (same humid conditions) Bromeliads Pothos or other trailing plants (separate containers nearby)

Avoid planting near:

Cacti and succulents (require dry conditions) Plants preferring dry environments Direct heat sources or air vents Cold drafts from windows Plants sensitive to high humidity (e.g., echeveria, jade plants)

Common Pests

  • Increase humidity to 70%+; mist foliage daily; spray with water to dislodge; use neem oil or insecticidal soap if severe

  • Remove with damp cloth or cotton swab dipped in rubbing alcohol; isolate affected ferns; spray with insecticidal soap

  • Scrape off manually with soft brush; treat with horticultural oil or neem oil; improve air circulation

  • Reduce watering frequency slightly; allow mounting medium to dry marginally between soakings; use sticky traps; apply beneficial nematodes if severe

  • Ensure excellent drainage and air circulation; avoid soggy conditions; remount on fresh medium if severe; reduce watering frequency

Uses

🏠

Indoor Air Purification

Household

Ferns, particularly Boston ferns, are proven air-purifying plants that remove formaldehyde and other volatile organic compounds from indoor air. Their lush foliage actively improves air quality in homes and offices. [source]

🎨

Dramatic Vertical Decor & Living Art

Craft

Mounted tropical ferns create stunning living wall installations and sculptural focal points. Their cascading or architectural forms add tropical elegance to any interior or sheltered outdoor space. [source]

💊

Traditional Herbal Uses

Medicinal

Various fern species have been used in traditional medicine systems for respiratory and digestive support. Some tropical ferns possess antimicrobial and anti-inflammatory compounds studied in ethnobotany. [source]

🦋

Habitat for Small Creatures

Wildlife

Mounted ferns create microclimates that attract beneficial insects, small lizards, and arthropods in tropical outdoor settings, supporting local biodiversity. [source]

🏠

Humidity Management

Household

Growing mounted ferns naturally increases ambient humidity through transpiration, benefiting other houseplants and improving indoor air comfort in dry climates. [source]

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

Harvest Tips

Mounted tropical ferns are ornamental display plants, not harvested for consumption. For propagation: collect spores from fertile fronds and grow in humidity chamber, or separate plantlets/pups that develop on mature ferns and remount individually.

Fun Facts

  • 🌱 Staghorn ferns (Platycerium bifurcatum) produce two distinct types of fronds: shield fronds that hug the mount and gather nutrients and debris, and antler fronds that photosynthesize and give the plant its iconic appearance.
  • 🌱 Ferns reproduce via spores rather than seeds; a single fertile frond can produce millions of microscopic spores, making them among Earth's most successful plants for over 360 million years.
  • 🌱 In their native rainforest habitat, tropical ferns grow as epiphytes on tree branches without harming the host tree, creating a mutually beneficial relationship while remaining completely self-supporting.

Gardening Terms

New to gardening? Learn about terms used in this guide:

pH
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