Plants bloom from Fall through early Spring with ten to thirty 10 cm (4 inch) fragrant flowers. Flowers are produced on terminal flower stems that develop at the apex of the pseudobulb. The unbranched inflorescence produces between ten and 30 blooms. The petals and sepals are light lavender to pale rose in color with mauve or magenta spotting. The amount of spotting varies widely between individuals with some individuals demonstrating few spots. The lip is bright magenta in color and partially wraps around the column. The throat varies in color from white to pale yellow or gold.
Cattleya amethystoglossa is a tall plant and has pseudobulbs that grow up to 3 feet tall. Each pseudobulb has two (occasionally three) leathery, green leaves at the top. This species is in the Bifoliate division of Cattleyas.
Plant is found growing in palm tree trunks, rock outcrops, and large tree branches high in the canopy of evergreen trees trees in Bahia, Minas Gerais and Pernambuco states of Brazil at elevations around 600 meters. This plant is found growing in bright, airy, humid locations. Its native range has been greatly reduced due to habitat destruction, logging, and agriculture.
Plants should be grown in medium fir bark with partial to full sun. The plant is a cool to warm growing orchid species. Water approximately once a week and reduce watering during the winter. Plant can also be mounted.
Currently, there are two varieties, standard, shown at top right and coerulea, bottom right. Parkside currently has a number of the standard plants, not in spike, but blooming sized and ready for shipping, $75.