How to Water Dendrobium dixanthum?
Mist roots lightly, soak bark substrate only when fully dry

Dendrobium dixanthum · Dendrobium dixanthum
Plants are best grown mounted on cork bark or wood if sufficient humidity can be provided. Alternatively, grow in a pot in an epiphytic, medium grade, bark-based potting mix with added perlite, moss, or coir. It is best to stake each cane to keep the upright form when potted. If grown in a basket or mounted, the plant will naturally develop pendulous form. As with many orchids, they grow best when the roots are slightly restricted. Therefore, avoid over-potting or frequent root disturbance. Provide large amount of bright, but indirect light and 80 - 85% humidity in spring and summer, then move the plant to a bright, cooler room in autumn and winter. Reduce watering and feeding until warmer temperatures initiate new growth in spring. See indoor orchid cultivation
Mist roots lightly, soak bark substrate only when fully dry