It's time for this tree to enjoy the golden age of retirement. Who knows, maybe this oak tree will take up knitting or Chezuu?
”
–In-Game Item Description
How to Obtain
The Mature Oak Tree can be obtained by planting an Acorn on the Housing Plot and watering it. The seed will first grow into a sapling, then a young tree, followed by adult. The adult tree will then grow into a mature tree after watering daily for (?) days.