Dendrobium chrystoxum bloom 2020: This is an old Dendrobium chrystoxum. It blooms like this every year. It is one of my first orchids in my collection. It can bloom like this if you follow the winter rest rules for Dendrobiums. This year, it has 98 flower buds. Currently, 87 of them are in bloom. The remaining 11 flower buds are a bit behind and will not bloom for another 1-2 weeks.