Jen, go to this thread. It's for bugs to do with this quest https://forums.storm8.com/showthread...=1#post1563849
the game would not let me UPGRADE the trees until that goal came along. but you have to upgrade all of your trees. however many you have. if it let you upgrade early then send a ticket in to them as a bug
-shortdanzr aka wicked red
[Though she be but little, she is fierce]
*accepting new neighbors. I answer all requests, but don't visit daily