Den. nobile hybrid, watering after growth's matured.

[Blueszz]

Or maybe the question should be: to water or not to water in October :-)

Cultured outdoors, 4 new growths this year, all matured. Temperatures currently go from 63F (17C) during the day to 45F (7C) during the night. I withheld fertilizer from the first week of September.

It's a Yamamoto hybrid, I've read their culture advises.

When I got it it was in full bloom, the canes all had their leafs. Past summer the canes that flowered last winter lost their leafs and shriveled a bit. I think this is normal.

I thought I should water less to induce flowering (with temperature drop during the nights), water only enough to prevent canes from shriveling. But, when I do that it looses some leafs on this years growths.
What should I do? Water more often? Withold water and accept the loss of leafs?

Am I confused with witholding water by the cold dry rest for for instance Den. kingianum?

Thanks, Nicole