Den. Amethystoglossum winter care?

[OrchidLoverSA]

Hello,

Here is my first question: How do you take care of dendrobium amethystoglossum in winter? I've found a lot of conflicting information on the internet...

Should I wait until all the canes (or the largest one?) matures and then stop watering altogether for weeks on end? Or should I keep it lightly moist in winter? How cold should I let it get and how much light should I give it?

Also, if all goes well, when can I expect it to start spiking?

Thanks in advance guys!