When a phally grows a new leaf, rejoice!
But seriously, most of the ones you will get to buy will grow (leaves) when it is warm enough, say over 25 C. And produce flower spikes when it is cold enough, say below 18, or even 15. This is how the mass production units work - you could call this forcing, but it is just finding out what happens in nature, then controlling the environment to suit what you want.