I finished all the Noblegarden achievements yesterday, and decided to write up a short guide for those of you who haven’t started the world event.  You can get a special pet reward through the Noblegarden Merchant with 100 chocolates (currency).  Additionally, a good incentive to complete all the 10 achievements of Noblegarden is that completing all the world events year-round will get you a Violet Proto-Drake Mount.  So get going buddies.  Read the Noblegarden Guide.