Phal. growth cycles?

[escualida]

Hi all, I only started growing orchids less than a year ago and have quite a few phals. A lot of them came in bloom or in spike but some didn't, and I've actually never had a spike initiate on my watch.

I have a few phals that are currently going through some kind of root growth spurt where they're putting out a ton of new roots which is great, but it got me thinking, do phals generally have some sort of cycle they go through? Like stages where they'll have a lot of root growth, then leaf growth, and then a spike?

I know there are different opinions on how to get spikes to initiate using day length and temperature, but for people who grow them in the same lighting and temp conditions year round, do you notice that spikes form whenever or at a certain stage in the growth?

Not sure if this question makes sense, just curious.