Dormancy and when to stop watering

[Suzanne17]

The culture sheets I've read have said to slow watering and cease fertilizer when leaves yellow and once they drop- stop watering. But they also say that leaves fall when the bloom has faded. My 'Witchcraft' is in full bloom but the leaves have all dropped. The Fredclarkeara is starting to drop leaves and is in full bloom. So I'm a little confused.

I know that I should be stopping everything by Jan. 1 no matter what but could they be going into dormancy early even with flowers still in full bloom?

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