Flowering jasmine by: Steve @ Different-kinds-of-plants.com
For starters, make sure the roots are not compacted in the container which holds them. Secondly, you may want to back off the Miracle grow for a month.
For a plant like the angel trumpet monthly fertilizing may be useful, but the Carolina jasmine vine should not need that much feeding.
Try using compost instead of chemical fertilizer. If you must use fertilizer choose one especially for blooming plants.
They contain less nitrogen and more flower producing potassium. Spring is not to far off, which is the time the Carolina jasmine blooms. If nothing happens a few weeks into spring, do some light pruning and see what happens.