Source: Wikimedia Commons
Grammatophyllum
AdvancedA genus of large epiphytic orchids from Southeast Asian rainforests, also called tiger orchids. The largest species, G. speciosum, has pseudobulbs reaching 3m and ranks among the biggest orchids in the world.
About
Grammatophyllum, sometimes abbreviated in horticultural trade as Gram, is a genus of 13 currently known orchid species. The name is derived from the Greek words 'gramma' and 'phyllon' (leaf), referring to the parallel leaf veins or the markings of the perianth. This epiphytic genus occurs in dense rainforest from Indo-China, to Indonesia, Malaysia, the Philippines, New Guinea, and the Southwest Pacific islands.
Source: Wikipedia (CC BY-SA 4.0)
Lifespan of the Grammatophyllum
The Grammatophyllum lives 10+ years.
Size of the Grammatophyllum
The Grammatophyllum grows to 100-300cm.
Temperature & humidity for the Grammatophyllum
The ideal temperature for the Grammatophyllum is 20〜35℃.
Basic Info
Origin
dense rainforest from Indo-China, to Indonesia, Malaysia, the Philippines, New Guinea, and the Southwest Pacific islands
Lifespan
10+ years
Size
100-300cm
Temperature
20〜35℃
Humidity
50〜70%
Growing Tips
Light & Placement
It prefers strong light. Place it in a sunny spot and allow plenty of space for the large species.
Watering
Water abundantly and keep it hot and humid. Larger plants dry out faster, so watch for underwatering.
Temperature & Overwintering
It wants a hot, humid 20-35°C. Keep it in a warm room in winter and avoid cold.
Soil & Repotting
Large species need a big pot or garden culture. Choose a stable container that can support the heavy plant.
Fertilizer
Feed generously as well. To build the large pseudobulbs, apply fertilizer regularly along with watering.
Grammatophyllum FAQ
QWhat is the growing difficulty level for Grammatophyllum?
Advanced. A variety suitable for advanced growers. Requires advanced cultivation techniques and specialized equipment, with careful environmental adjustments needed.
QWhat is the ideal temperature for Grammatophyllum?
The ideal temperature for Grammatophyllum is 20〜35℃. Avoid sudden temperature changes and maintain a stable environment.
QWhat is the lifespan of Grammatophyllum?
The average lifespan of Grammatophyllum is 10+ years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.
QHow large does Grammatophyllum get?
The mature size of Grammatophyllum is 100-300cm. This may vary slightly depending on cultivation environment and individual differences.
QWhat is the typical price for Grammatophyllum?
The price of Grammatophyllum varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.
Last updated: August 31, 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: Blume
Synonyms: Gabertia, Sadokum, Pattonia
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
Find listings for this species
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