Quote Originally Posted by smartie2000 View Post
It's more important for blooming on some species that rely on the daylength as seasonal cues for blooming or dormancy.
I completely agree.
Some Catts, for instance, are photoperiodic (day-length sensitive), some get their blooming cues when days get shorter and others when days get longer.

Here is the most often suggested number of hours of light per day following the seasonal changes

11.5 hours of light in December,
12 hours in mid-January,
13 hours in February,
14 hours in March through August,
13 hours in September,
12 hours in October,
and 11.5 in November.