While the dark green leaves of the bleeding heart vine are a main attraction, the large clusters of flowers are a showstopper during the flowering period. The nectar attracts butterflies; the panicles are scented and not overly aromatic. When pollinated, it produces green fruits. To ensure that your Clerodendrum thomsoniae blooms feed it regularly every six to eight weeks. Use a fertilizer with added calcium or organic calcium supplements that encourage blooming. Cut the stems back to an inch off the ground after it completes a bloom to force another flower. As fall approaches, the bloom period slows and provides enough direct sunlight daily.