Toothed Sun Orchid (Thelymitra dentata)

Photo: no rights reservedCC0 1.0via iNaturalist

Toothed Sun Orchid Plant Care

Thelymitra dentata L.B.Moore

Updated · Sources · How we source care data

With striking blue flowers that closely resemble butterflies in flight, this orchid species originates from Australia. Plant collectors are drawn to Thelymitra dentata for its unique and eye-catching floral display, making it a coveted addition to any botanical collection.

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Water

Every 7–10 days

Light

Bright indirect light

Temp

60–80°F

Humidity

50–70%

At a glance

How do you care for Toothed Sun Orchid?

Water Toothed Sun Orchid every 7–10 days, letting the top layer of soil dry out between waterings, and give it bright indirect light. It prefers temperatures of 60–80°F (16–27°C) and 50–70% humidity. Fertilize it every 2 months during the growing season.

Where Is the Toothed Sun Orchid Native To?

Native range1 country

What Is the Toothed Sun Orchid?

Toothed Sun Orchid (Thelymitra dentata) belongs to the Orchidaceae family within the Thelymitra genus. Toothed Sun Orchid is native to New Zealand.

Toothed Sun Orchid displays a terrestrial, lithophytic growth habit, reaching up to 1 ft tall with a spread of approximately . Toothed Sun Orchid produces colorful orchid-like flowers in various shades.

Leaf size: approximately 6 inches.

How Often Should You Water a Toothed Sun Orchid?

Thelymitra dentata requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watering Frequency

Every 7–10 days

Let soil partially dry between waterings

What Light Does the Toothed Sun Orchid Need?

Toothed Sun Orchid thrives in bright indirect light. Avoid placing Toothed Sun Orchid in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Bright indirect light

What Temperature and Humidity Does the Toothed Sun Orchid Prefer?

Thelymitra dentata grows best at temperatures of 60–80°F. Toothed Sun Orchid prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Temperature

60–80°F

Humidity

50–70%

What Soil Mix Works Best for a Toothed Sun Orchid?

Well-draining orchid mix with bark and perlite. Good drainage is essential for Toothed Sun Orchid to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Toothed Sun Orchid?

Feed Toothed Sun Orchid every 2 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.

Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.

Fertilizing

Every 2 months

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

How Do You Repot a Toothed Sun Orchid?

Repot every 1-2 years after flowering. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

How Do You Propagate a Toothed Sun Orchid?

Toothed Sun Orchid can be propagated through division, seeds. Similar propagation techniques also apply to sun orchid plant care, which shares the same genus.

Is the Toothed Sun Orchid Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Toothed Sun Orchid, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Toothed Sun Orchid?

Toothed Sun Orchid is susceptible to aphids, spider mites, scale insects. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Toothed Sun Orchid Need?

Toothed Sun Orchid grows outdoors in USDA Zone 9a – 10b. It survives winters down to planting zone 9a. Toothed Sun Orchid is native to New Zealand. In cooler regions, grow Toothed Sun Orchid as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 9a – 10b

Keep exploring plants

Toothed Sun Orchid is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Thelymitra genus — compare its care with other Thelymitra species on PlantoScan.

Thelymitra is part of the Orchidaceae plant family — browse all Orchidaceae genera and species.

Toothed Sun Orchid thrives in bright light and direct sun — see other bright-light plants.

More Thelymitra Species

Other Thelymitra species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

Sources

  • Scientific name & taxonomy: Thelymitra dentata L.B.Moore, family Orchidaceae (first published in New Zealand J. Bot. 6: 478 (1968)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Toothed Sun Orchid, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Photo: Public domain, CC0 1.0, iNaturalist — original.
  • Hardiness zone: USDA Zone 9a – 10b, estimated from the plant's typical growing conditions.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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