Grammatophyllum martae Quisumb. ex Valmayor & D.Tiu
Color: Green with dark brown
Bloom Time: Summer
Grammatophyllum martae is a species of orchid with large pseudobulbs, up to 9 inches (22.5) cm tall, and up to 4 inches (10 cm) in diameter. Leaves are at the pseudobulb's apex, up to 2 feet (60 cm) long and up to 4 inches (10 cm) wide. Inflorescences reach up to 5 feet (1.5 m) in length and carry about 80 flowers. The flowers are dark brown with yellow markings and up to 1.8 inches (4.5 cm) across.
USDA hardiness zone 10a to 11b: from 30 °F (−1.1 °C) to 50 °F (+10 °C).
How to Grow and Care
Grammatophyllums grow well in moderate light intensity. Morning sun is best, until about noon. Observation of the leaf structure can be your best guide to the correct light conditions for which a type is particularly suited. Lime green-colored foliage is an indication of proper light. While very attractive, dark green foliage is not conducive to the plant reaching its full blooming potential. Yellow-colored foliage indicates too much light. In very mild climates, most members of this can be grown out of doors, with protection from the hot summer sun and winter colder nights.
The ideal annual temperature range for most members of the genus Grammatophyllum are 75 to 85 °F (24 to 30 °C) during the day and 55 to 60 °F (13 to 16 °C) at night. Plants will tolerate temperatures to 45 °F (10 °C) and up to 100 °F (38 °C) for short periods. At higher temperatures, air circulation and humidity must be increased, or damage can occur. See more at How to Grow and Care for Grammatophyllum.
It is found only in Negros in the Philippines.
- Back to genus Grammatophyllum
- Plantopedia: Browse flowering plants by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, or Origin
We participate in the Amazon Services, LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliate sites.