Rhapsody In Blue:  A whisper started in England.  And then the story spread about a nearly-blue rose with gray-green leaves coming from an amateur hybridizer, Frank Cowlishaw.  With the first flowering in the trials, the world-wide rumor ran rampant about this remarkable rose.  Yet the trials showed the elusive beauty to be true to her English upbringing, having a definite preference for cool conditions.  The upright bushy pillar sulks in the heat but recovers remarkably with milder