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Thunia

Source: Wikimedia Commons

Thunia

Intermediate

A deciduous orchid with bamboo-like stems and large Cattleya-like white flowers in summer.

Growing Difficulty
Intermediate
Temperature
15〜30℃
Lifespan
10+ years
Size
40-80cm
Humidity
50〜70%

About

Thunia is a genus of orchids. It is now included in the subtribe Coelogyninae, but was previously treated as the only genus of the subtribe Thuniinae. The genus comprises 6 species, native to Southeast Asia. It is abbreviated Thu in trade journals.

Source: Wikipedia (CC BY-SA 4.0)

Lifespan of the Thunia

The Thunia lives 10+ years.

Size of the Thunia

The Thunia grows to 40-80cm.

Basic Info

Origin

Southeast Asia

Lifespan

10+ years

Size

40-80cm

Temperature

15〜30℃

Humidity

50〜70%

Growing Tips

Light & Placement

During the growing season (spring to autumn) it needs strong light. Reaching 40-80cm, it wants a sunny spot with room.

Watering

Water abundantly during growth. Once it drops its leaves and goes fully dormant in winter, reduce watering and keep it on the dry side.

Temperature & Overwintering

During growth it needs a hot, humid 20-32°C. In winter it drops its leaves and rests, so overwinter it on the dry side.

Soil & Repotting

Pot in bark and pumice for good drainage. The bamboo-like stems grow tall, so use a stable pot that will not tip.

Fertilizer

It needs generous feeding during growth. Stop fertilizing once the leaves drop and dormancy begins.

Dormancy Care

It is deciduous, dropping its leaves for full dormancy in winter. Withhold water then, keep it dryish, and wait for spring growth.

OrchidThuniaDeciduousLarge Flower

Thunia FAQ

QWhat is the growing difficulty level for Thunia?
A

Intermediate. A variety suitable for intermediate growers. Requires some cultivation experience and knowledge of environment management. Pay careful attention to temperature and humidity control.

QWhat is the lifespan of Thunia?
A

The average lifespan of Thunia is 10+ years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.

QHow large does Thunia get?
A

The mature size of Thunia is 40-80cm. This may vary slightly depending on cultivation environment and individual differences.

QWhat is the typical price for Thunia?
A

The price of Thunia varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.

Last updated: September 17, 2026

References & Sources

Edited & verified by: GrowerDirect Editorial Team

The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.

Primary sources

Taxonomy & Authority

Accepted name: Rchb.f.

Authority databases: GBIF · POWO · RHS orchid hybrid registration (International Orchid Register) · AOS (American Orchid Society)

Nomenclature follows global taxonomic authority databases.

Regulations & Conservation Status

CITES Appendix II

The family Orchidaceae is listed entirely in CITES Appendix II (except for the genera Paphiopedilum and Phragmipedium and certain species, which are in Appendix I). Cultivars and hybrids are subject to family-level regulation; however, artificially propagated specimens may benefit from simplified trading procedures under the Appendices.

Sources: CITES Appendices (Orchidaceae spp. = Appendix II) / CITES Appendix I Orchid Checklist (Kew/UNEP-WCMC 2019)

Regulations may change. Always verify the latest information with the relevant authorities.

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