Bletilla growing in autumn? Advice needed

[rbarata]

That's it...my Bletillas started growing 6 months before the expected time. I have stopped watering when temps started to cool down and the leaves were dying.
Last week we had a warmer weather with lots of rain so I think this was the cause, as this kind of weather is a typical spring weather around here.

So, I really don't know what to do now...if I water them, as temps are going down fast (especially at night, 6 to 8 ºC / low 40's F) I believe they will rot.
What would you do?

Photos