Temp Diff for Phal to set blooms earlier

[Magnus A]

Originally Posted by RosieC

However, to ensure they set a spike, they first keep them warm enough to inhibit spiking for 18+ months, as well as feeding with high nitrogen in that time. This actually inhibits flowering an encourages growth ensuring the plant is strong and over-due for flowering before they drop the temperatures and lower the nitrogen.

I doubt that you need the 18+ months as we in sweden often get our phals to flower just before christmas every year. The tmperaturedrop in most windows due to colder weather in the end of September in Sweden initiate flowering and after about 90 days the flowersopen, just before christmas.
You are though right that commersial growers keep their phal at hig temperature for growth until they initiate flowering.