I completed the achievement For the Children! and received the item to create the Wintersday Tree of Generosity node (https://wiki.guildwars2.com/wiki/Wintersday_Tree_of_Generosity).
I clicked on it and received in game dialog stating that a node was added to my home instance however, I can not find the tree anywhere.
Notes say that it should be available everyday of the year. Does anyone have any idea where it is or if there is a bug?