Prosthechea prismatocarpa is a large-sized, cool to cold growing epiphyte, which reaching 50 cm in height, with elongate, conic, 15 cm long and up to 5 cm in diameter pseudobulbs.
Moderately bright light should be filtered or dispersed. The plants should not be exposed directly to the sun, especially at noon. Strong air movement should be ensured all the time.
Rainfall is moderate and even abundant, with a 2-month slightly drier period at the end of winter.