Dendrobium primulinum is totally deciduous,that is, it looses all its leaves.Once the leaves start to turn yellow in the autum it is time to with-hold all water until new root growth is clearly seen.
Here's a link to further explain
http://www.orchidspecies.com/dendrobiumprimulinum.htm
If you look at the longest cane/pbulb it is possible to see flower buds developing at the nodes where the leaves used to be
Attachment 5067




Reply With Quote
