How to Grow Sarcochilus spathulatus

iNaturalist

Sarcochilus spathulatus

flower

Sarcochilus spathulatus, commonly known as the Small Leek Orchid, is an epiphytic orchid native to eastern Australia. It produces delicate, small white to pale pink flowers with distinctive red or purple spotting and a spoon-shaped labellum. This miniature orchid grows naturally on tree branches in subtropical and warm temperate rainforests.

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Example Sarcochilus spathulatus timeline · Pittsburgh, PA (Zone 6b)

Plant Sarcochilus spathulatus
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
First Sarcochilus spathulatus blooms
Mid-to-late summer

Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Sarcochilus spathulatus dates for your own zip code.

Growing Conditions

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Sun: Bright indirect light, 50-70% shade; 2,000-3,000 foot-candles; avoid direct afternoon sun

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Water: Keep consistently moist but never waterlogged; water 2-3 times weekly during growing season, reducing in winter. High humidity (50-70%) is essential; mist regularly or use a humidity tray

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Spacing: Individual plants can be mounted on cork or tree fern slabs; allow 6-12 inches between mounted plants for air circulation inches

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Days to maturity: 3-5 years from seedling to first flowering

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Planting depth: Mount on cork bark or tree fern fiber; secure with monofilament or loose ties, do not bury roots

Soil

Type: Epiphytic orchid mix - well-draining bark-based medium (medium to coarse bark chips, charcoal, perlite)

pH: 5.5-6.5

Amendments:

Fine charcoal Perlite or pumice Sphagnum moss (light addition) Tree fern fiber

Growing Zones

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Thrives in zones 9b-11, with best performance in zones 10-11

9b 10a 10b 11a 11b

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Growth Stages

Seedling/Juvenile

1-2 years

Tiny plantlets with minimal root system; very small leaves developing; no visible pseudobulbs yet

Maintain high humidity (70%+); use fine orchid bark mix; water lightly but frequently; protect from direct light; provide warm conditions (65-75°F)

Vegetative/Establishment

1-2 years

Plant develops small pseudobulbs and compound leaves; establishes more robust root system; slow but steady growth

Maintain consistent moisture and humidity; bright indirect light; monthly fertilization at half strength during active growth (spring-summer); ensure excellent air circulation

Pre-flowering/Mature

Several months before bloom

Plant reaches blooming size with developed pseudobulbs and established foliage; new growth emerges regularly

Provide cooler winter rest (55-60°F) for 4-6 weeks to trigger flowering; reduce water slightly; continue bright light; regular weak fertilization

Flowering

4-8 weeks

Inflorescences emerge from axils of leaves or pseudobulbs; small delicate white to pale pink flowers with red/purple markings appear; flowers are fragrant

Maintain humidity and bright light; avoid moving plant; continue regular watering; do not fertilize during bloom to extend flower longevity; flowers last 3-6 weeks

Post-flowering/Rest

2-3 months

Flowers fade and drop; plant enters dormancy period with minimal new growth; energy redirected to root and pseudobulb development

Reduce watering slightly; maintain humidity; cool temperatures (55-65°F) encourage next bloom cycle; minimal fertilization; ensure good air circulation to prevent fungal issues

Companion Planting

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Plant with:

Other miniature epiphytic orchids (Dendrobium nobile, Oncidium varieties) Tillandsia species (air plants on same mounts) Mounted ferns (Davallia, Platycerium) Rhaphidophora tetrasperma (tropical vine in same humid environment)

Avoid planting near:

Plants requiring dry conditions Drafty locations near heating vents or air conditioners Areas with heavy pesticide use Extremely shade-tolerant plants that compete for light in orchid displays

Common Pests

Increase humidity to 60%+; spray with water or horticultural oil; isolate affected plants; inspect undersides of leaves regularly
Remove manually with alcohol-soaked cotton swab; apply horticultural oil or neem oil; treat every 7-10 days for 3 applications
Remove with alcohol-soaked cotton swab; spray with insecticidal soap; maintain high air circulation; repeat treatments weekly
Improve air circulation; reduce watering frequency; remove infected tissue with sterile tools; apply sulfur dust or fungicide; repot in fresh media if severe
Remove all affected tissue immediately with sterile knife; do not water from above; improve drainage and air flow; apply copper fungicide to cut areas

Uses

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Ornamental display (not edible)

Culinary

Sarcochilus spathulatus is purely ornamental and serves no culinary purpose. It is grown exclusively for its delicate, fragrant flowers. [source]

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Specialized orchid cultivation and collection

Craft

A prized orchid for hobbyist orchid growers and collectors, particularly those specializing in miniature or Australian native orchids. Growing this species demonstrates advanced orchid care skills and contributes to orchid conservation. [source]

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Native pollinator support in suitable climates

Wildlife

In its native Australian habitat and suitable subtropical regions, Sarcochilus spathulatus provides nectar for native bees and insects. Cultivation in appropriate regions supports native pollinator populations. [source]

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Indoor ornamental plant and air purification

Household

Grown as an attractive windowsill or greenhouse specimen that adds aesthetic appeal and fragrance to indoor spaces. Like other plants, it contributes to air quality improvement through photosynthesis. [source]

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Traditional ethnobotanical interest

Medicinal

While not commonly used in modern medicine, some Australian native orchids have ethnobotanical significance in Indigenous plant knowledge. This species is primarily valued as an ornamental rather than for medicinal properties. [source]

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

Harvest Tips

This is an ornamental orchid grown for flowers, not harvested for consumption. Cut flower spikes can be removed after blooming or left on plant for potential reblooming. For propagation, remove keiki (baby plantlets) with 2-3 roots when 1-2 inches tall and mount separately. Seed propagation requires lab-based sterile culture (not practical for home growers).

Fun Facts

🌱 The name 'Sarcochilus' derives from Greek words meaning 'flesh-lipped,' referring to the thick, fleshy labellum (lip) characteristic of this orchid genus.
🌱 Sarcochilus spathulatus is endemic to a small region of eastern Australia and is considered vulnerable in its native habitat, making cultivation by orchid enthusiasts important for species preservation.
🌱 These miniature orchids are commonly grown mounted on cork bark or tree fern slabs rather than in pots, mimicking their natural epiphytic lifestyle where they grow on rainforest trees without soil.

Gardening Terms

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