Withhold water in Winter?

[Acharn]

I've got a number of Dendrobiums and some Vandas. I'm fairly sure they are all either species native to Thailand or hybrids of Thai native species (I could be wrong about a couple of them being Thai natives, but they're Dendrobiums for sure).

I've seen many statements that Dendrobiums need a rest period in the Winter. We're now entering what Thais call the Cold Season, which is part of the longer Dry Season (next comes the Hot Season, starting about the middle of February, followed by the Rainy Season starting about May). My problem is that almost all my Dens are growing new stalks. If these plants were in the wild, they would get almost no water for about the next six months, but I don't feel comfortable not watering them at all. I've been watering and fertilizing them about once a week and misting them daily.

At this point I don't expect any of them to be blooming for me, but do the new stalks need more water than what I've been giving them? For people in more northern countries, our nights during the Cold Season average about 16-17C (62F) and days get up to 30-32C (86F). It can get much colder, but not very often at the altitude where I live.

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