Hoya vanuatuensis took a long, long time to bloom!  I think it was close to five years.  It is a robust and stong growing plant, and does well under any condition, but it is a very reluctant bloomer – at least for me.  I finally got it to bloom with three blossoms in a grow tent.  I think that it makes a very nice looking houseplant even if it does not bloom.  I recommend it highly as a plant for any type condition.