Random plant event: Salvia elegans

I was sort of under the impression that Salvia elegans bloomed at the end of the summer or beginning of fall, and if overwintered in a greenhouse or indoors, maybe sporadically through the winter as well. But these plants, grown from cuttings over last fall and winter, have been blooming more and more and more since about the beginning of May. I enjoy it, but it also confuses me. Was everything