One of my enlightening tea experiences was a sample set that my little local tea shop in Bonn (now TeeGschwendtner and not so little anymore) offered many years ago: Four different early invoices from first flush Darjeeling teas. I had never had tea that expensive before, nor had I tasted tea like that. It changed my tea trinking habits dramatically.
This year, Harney & Sons are offering small tins with labels saying distinctively Tree 1 through Tree 4. These are harvests from four individual Song Zhong tea trees, each prepared in a different way. Harney characterizes them as floral/fruity/body/creamy.
These are all Oolong teas with a slightly peachy flavor, and they are really all different in taste. In found the second one most interesting with strong Maracuya notes, and the last one rather blunt.
While not as mind-opening as my Darjeeling experience many years ago, this has still been a worthwhile experience.
Reportedly, Chinese buyers can purchase an entire tea tree and receive the yearly harvest over their life time. I would like that.