If you have another one in the pot that you believe is H. striatum, then this plant may be a hybrid offspring of striatum. Yesterday, after I glanced at the photo, the shape of the bloom and the color of the throat reminded me so much of striatum. I hesitated to post that ID after I enlarged the photo and saw the variegation. Striatum produces lots of offsets Repotting can sometimes jump start bulbs into producing blooms later in the year.
