Pint plant Clerodendrum thomsoniae Bleeding Heart vine. This is one of the most beautiful vines that I grow. These clusters of blossoms arrive in late spring and stay on the plant for up to 6 weeks and then return in early fall and stay until frost. Hardy in zone 8 to 11, the Bleeding Heart vine thrives in full or part sun. Clerodendrum thomsoniae grows to 10 feet and needs to be attached to structure to help it vine upwards. This plant also makes a good indoor plant if kept pruned.