The Cherry Blossom Festival is in full bloom for the spring and not only can you can see many of the beautiful trees everywhere but you can get one of your own! Click HERE for a very informative guide on the forums.
As you can see here I have a garden full of them. You can just harvest them with your hands or a hoe from wild herbs, thought they are a rare drop and take about 6 hours to grow into a mature tree. They drop approx. 10-13 petals each. They take up 2 spaces in a garden so with a waterway and scarecrow I can fit 4.
The petals can be sold for about 10,000 silvers each, eaten for a nice buff, or handed in to the NPC seed vendor outside of the Lily of the Valley Inn at Heidel, Skill Instructor Hunt.
You can acquire a lovely minature Cherry Tree in a planter for your home for 10 petals:
OR you can get a very nice Cherry Blossom Festival Earring for 30 petals:
The items are family bound so you will not be seeing them on the AH and the earring is also dyeable. Better get your farm going if you want them!