How to Grow Small-growing tropical plants for terrariums
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Small-growing tropical plants for terrariums
Various species (e.g., Selaginella, Fittonia, Peperomia, Begonia)
flowerSmall tropical plants suitable for terrarium cultivation include moisture-loving, compact species that thrive in humid, enclosed environments. These plants are ideal for creating miniature tropical landscapes in glass containers, vivariums, and closed terrariums. Common choices include ferns, begonias, peperomias, fittonias, and selaginellas.
When should you plant Small-growing tropical plants for terrariums in your zone?
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Example Small-growing tropical plants for terrariums timeline · Pittsburgh, PA (Zone 6b)
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Plant Small-growing tropical plants for terrariums
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Small-growing tropical plants for terrariums blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Small-growing tropical plants for terrariums dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 10-11; grown indoors in cooler climates
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Get my Small-growing tropical plants for terrariums timeline →Growth Stages
Establishment
1-2 weeksFreshly planted cuttings or seedlings are acclimating to terrarium humidity and light conditions. Leaves may appear slightly wilted initially.
Maintain high humidity (70-90%); avoid over-watering; ensure good drainage; monitor for fungal issues in closed systems. Mist lightly daily in open terrariums.
Vegetative Growth
4-12 weeksPlant develops new leaves, stems, and root system. Foliage becomes fuller and more vibrant; new growth appears regularly.
Provide stable humidity and bright indirect light; maintain consistent moisture; fertilize monthly with diluted liquid fertilizer (half-strength); pinch growing tips to encourage bushiness.
Mature Foliage
Ongoing (months to years)Plant reaches desired size with dense, attractive foliage. For flowering species, flower buds may begin to form.
Continue regular misting and moisture management; prune leggy growth; maintain temperature 65-80°F; reduce fertilizer frequency to every 6-8 weeks.
Flowering (if applicable)
2-8 weeks depending on speciesSpecies like begonias and African violets produce delicate flowers in shades of pink, white, red, or purple. Blooms last 2-4 weeks.
Ensure adequate light for flower production; maintain humidity but avoid wetting flowers; continue regular care; do not move container during blooming.
Maintenance
Ongoing (1-3+ years)Plant stabilizes in terrarium; growth slows as it reaches equilibrium with environment. Long-term health and visual appeal maintained.
Prune overgrown shoots; replace spent soil every 12-18 months in open terrariums; monitor for pests and disease; adjust light/humidity as needed seasonally.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity; mist foliage; isolate affected plant; apply neem oil or insecticidal soap; improve air circulation in terrarium
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Remove with cotton swab dipped in rubbing alcohol; treat with horticultural oil; isolate plant; check roots for root mealybugs
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Allow soil surface to dry slightly between waterings; use sticky traps; reduce organic matter in soil; apply mosquito dunks (BTi) if severe
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Remove manually with soft brush; treat with neem oil every 7-10 days; improve air circulation; isolate heavily infested plants
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Improve air circulation and reduce humidity slightly; remove affected leaves; apply sulfur dust or fungicide spray; avoid overhead watering
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Ensure excellent drainage; reduce watering frequency; repot in fresh soil; remove rotted roots; use activated charcoal in soil
Uses
Miniature Landscape Display
HouseholdSmall tropical plants create living artwork in glass terrariums, vivariums, and glass domes. They add natural beauty to desks, shelves, and living spaces while improving indoor air quality through transpiration. [source]
Humidity Regulation and Closed-System Ecosystems
HouseholdClosed terrariums create self-sustaining microclimates where plants release moisture that condenses on glass and returns to soil, reducing watering frequency. This educational aspect demonstrates ecological cycles. [source]
Edible Terrarium Plants (Peperomia species)
CulinarySome peperomia species produce small peppery fruits and leaves used as garnish or seasoning. They add flavor and visual interest to terrariums while remaining edible. [source]
Traditional Herbal Uses
MedicinalCertain begonias and fittonia species have been used in traditional medicine for minor ailments. Begonias contain oxalic acid and have been studied for anti-inflammatory properties in folk medicine. [source]
Tropical Plant Propagation and Biodiversity
WildlifeTerrariums enable home propagation of rare and endangered tropical species, supporting biodiversity conservation. Growing these plants indoors reduces pressure on wild populations and preserves genetic diversity. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Terrarium plants are grown for foliage and ornamental value rather than harvest. Prune regularly to maintain shape and size—remove dead leaves, leggy stems, and spent flowers. Pinch growing tips to encourage bushiness. Propagate by taking 2-3 inch stem cuttings with 2-3 nodes and rooting in moist sphagnum moss. Gently remove individual plants if they outgrow the terrarium and replace with new specimens.
Fun Facts
- 🌱 The Wardian case, a sealed glass terrarium invented in 1829 by Dr. Nathaniel Bagshaw Ward, revolutionized plant transport and indoor gardening by creating stable humid microclimates that mimic tropical rainforest conditions.
- 🌱 Fittonia plants (nerve plants) exhibit dramatic 'fainting' behavior, wilting when thirsty and perking up within hours of watering—a visual indicator of their water needs that makes them excellent for teaching plant physiology.
- 🌱 Many small tropical terrarium plants originated in rainforest understories where they evolved to thrive in 60-80% humidity, dappled light, and consistently warm temperatures—conditions perfectly replicated in glass terrariums.
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