Would like cultural tips regarding getting these species to flower. From what I understand warmish summers and intermediate to cool winters should work well for both. I am not certain of how much of a reduction in watering during winter they require. Both species grow well for me, but last year both blasted beginning of buds. This year the Den. fangjinshanense has produced single bud spike opposite nearly all the leaves that grew this years, hoping not to lose them. It's still a bit early for Den. vietnamense this year. If anyone grows either of these species and has tips, I'd appreciate hearing about it.