Getting my first phal to spike?

[en3rmax]

Hi again OB,

My first phal that was brought for me as an easter gift in 09 has never spiked since it's original spike died off, it's really healthy and has grew new leaves and plenty or roots but just no spike.

I repotted it in a good quality douglas fir bark, sponge and perlite mix reccomended by Peter White Orchids i also use a fertilizer reccomended my him too focused on blooming, the repotting was done in March.

Should i try to keep cooler at night to try and make it spike? i really want this phal to bloom