How big is it?

Maybe it is too small to bloom.

Was it raised from seed?

Maybe it is too young to bloom.

Have you been cutting it back?

Maybe you have been preventing it from flowering.

Does it look right?

Maybe it is actually another kind of shrub, that was mislabeled at the nursery.

Looks good, looks right, probably got it form Forest farm or similar, never cut back; about two feet high

Probably just too young and small a specimen for flowering.