Dendrobium vexillarius is from Papua New Guinea and Bismark Archipeligo, Moluccas and Papua. This species inhabits wet montane cloud forest as an epiphyte or lithophyte at elevations between 1,200 and 4,000 metres. 
 
Pseudobulbs measure up to 30 cm but generally are much shorter. The inflorescences are noticeably short and bear 1-4 long lasting flowers that measure 2 cm across. Plants bloom at any time of the year.
 
Grow Dendrobium vexillarius in a greenhouse. This species is not suitable for growing indoors unless in a terrarium with cool temperatures.
 
Care Instructions:
Grow Dendrobium vexillarius on a mount with moss underneath or in a pot with a moss, fine bark and perlite mixed media. Provide good air circulation, leaving it on continually when humidity is above 70%. Provide water by keeping potted plants damp and spray mounts every day and soak them in rainwater once a week. Maintain a cool to cold greenhouse/terrarium with night temperatures of 6-16 degrees and daytime temperatures of 18-27 degrees. 
 
Specifications:
 
Plant Size: Deflasked 2024, plants will be ready by spring to summer 2025
Family: Orchidaceae
Plant Passport: A Dendrobium vexillarius B 140084 c 13294 d GB