The more apex branch tips you have with buds, the more flowers you will have. Your tree has many now, which will assist in getting more flowers. Pruning each year will help to keep a good shape as well as induce good flowering.
Many of the hybrids do not throw a large group or truss of flowers off of one tip. The singles are more prone to this. When getting the Doubles, Triples and Quad's, then there is usually less in one truss. Fortunately as the Adenium flowers last for quite some time. This allows us to get numerous flowers at different stages on the tip of a branch.
Rick
