Source: Wikimedia Commons
Dendrobium Speciosum
IntermediateDendrobium speciosum
Australia's largest Dendrobium, spectacular with many long flower spikes from massive plants.
About
Dendrobium speciosum, the Rock Lily, is the largest native Australian orchid, found on rocky outcrops and trees from Queensland to Victoria. Robust pseudobulbs grow 30–80 cm with thick, leathery leaves. In spring (July–September in the Southern Hemisphere), long inflorescences (30–60 cm) bearing fifty to over two hundred small white to cream fragrant flowers create a spectacular display. Strong light with some direct sun, a free-draining bark, gravel, or pumice medium, regular watering and feeding during growth, and a dry winter rest to promote flowering are the key cultivation requirements. Larger, established plants produce the most impressive blooms.
Lifespan of the Dendrobium Speciosum
The Dendrobium Speciosum lives 10+ years.
Size of the Dendrobium Speciosum
The Dendrobium Speciosum grows to 30-80cm.
Temperature & humidity for the Dendrobium Speciosum
The species is notably hardy, tolerating temperatures near 5°C and moderate drought.
Basic Info
Origin
eastern Australia, Queensland to Victoria
Lifespan
10+ years
Size
30-80cm
Temperature
15〜30℃
Humidity
50〜70%
Growing Tips
Light & Placement
It likes strong light and tolerates direct sun. Grow it in a sunny outdoor spot to build its sturdy pseudobulbs.
Watering
Water moderately in the growing season (spring to autumn). It tolerates drought, so water once the medium has dried.
Temperature & Overwintering
It is very tough and hardy to around 5°C. In winter, keep it somewhere frost-free and on the dry side.
Soil & Repotting
Pot in bark, gravel or pumice for good drainage. It flowers more spectacularly as it gets larger, so use a big pot.
Fertilizer
Feed during the growing season (spring to autumn) to build the thick pseudobulbs. Stop feeding during winter dormancy.
Dormancy Care
A dry winter rest encourages flower bud formation. Withhold water and return to normal care when growth resumes in spring.
Dendrobium Speciosum FAQ
QWhat is the growing difficulty level for Dendrobium Speciosum?
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 Dendrobium Speciosum?
The average lifespan of Dendrobium Speciosum is 10+ years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.
QHow large does Dendrobium Speciosum get?
The mature size of Dendrobium Speciosum is 30-80cm. This may vary slightly depending on cultivation environment and individual differences.
QWhat is the typical price for Dendrobium Speciosum?
The price of Dendrobium Speciosum 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.
Taxonomy & Authority
Accepted name: Dendrobium speciosum Sm.
Synonyms: Tropilis speciosa, Callista speciosa, Dendrobium speciosum var. typicum, Dendrocoryne speciosum, Thelychiton speciosus
Authority databases: GBIF · POWO · RHS orchid hybrid registration (International Orchid Register) · AOS (American Orchid Society)
Nomenclature follows global taxonomic authority databases.
Regulations & Conservation Status
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.
Related Species
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