Grammatophyllum speciosum
TAXONOMY
FamilyOrchidaceae
GenusGrammatophyllum
Zone11
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Plants of the World OnlineABOUT
Grammatophyllum speciosum, commonly known as the giant orchid or tiger orchid, is the largest orchid species in the world. Native to Southeast Asia, it thrives in wet tropical climates and is often found growing as an epiphyte on large trees. This orchid is known for its massive size and striking yellow flowers with brown spots.
ALSO KNOWN AS
Pattonia Macrantha
Tiger Orchid
Grammatophyllum fastuosum
Grammatophyllum giganteum
Grammatophyllum macranthum
OVERVIEW
VPDCalculate
WaterVery Wet
SoilLoamy
LightIndirect Bright (12 Hours)
Temperature25° C
Humidity80%
pH6
Pressure1,013 mbar
DETAILS
Care Instructions
Grammatophyllum speciosum requires bright, indirect light and high humidity to thrive. It prefers warm temperatures and should be kept in a humid environment. Water the plant frequently to keep the soil consistently moist, but ensure good drainage to prevent root rot.Soil
This orchid prefers a well-draining, loamy soil mix that retains moisture but does not become waterlogged. A mix of bark, perlite, and sphagnum moss can provide the ideal growing medium. Ensure the pot has good drainage to prevent water accumulation.Fertilizer
Use a balanced orchid fertilizer with a nutrient composition of 20-20-20. Fertilize the plant every two weeks during the growing season and reduce feeding during the winter months. Dilute the fertilizer to half strength to avoid over-fertilization.Repotting
Repot Grammatophyllum speciosum every two to three years or when the plant outgrows its container. Choose a slightly larger pot and refresh the growing medium. Handle the roots carefully to avoid damage during repotting.Propagation
Propagate this orchid by division. Carefully separate the pseudobulbs during repotting, ensuring each division has a healthy root system. Plant the divisions in fresh growing medium and provide the same care as the parent plant.Pruning
Prune dead or damaged leaves and spent flower spikes to encourage new growth. Use sterilized pruning shears to make clean cuts and avoid spreading disease. Regular pruning helps maintain the plant's health and appearance.Toxicity
Grammatophyllum speciosum is not known to be toxic to pets or humans. However, it is always advisable to keep plants out of reach of pets and children to prevent accidental ingestion.Additional
This orchid can be grown both indoors and outdoors, provided it receives adequate light and humidity. It is a relatively low-maintenance plant but requires consistent care to thrive. Regularly check for pests and diseases, and address any issues promptly to keep the plant healthy.REVOLUTIONIZE YOUR PLANT CARE
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