[[ View] / Edit / Purge] this template The Celtic Knot Tree is a tree available on FarmVille. It was released on the February 29th, 2012 as part of the St. Patrick’s Day Event (2012), but was removed from the market on March 14, 2012. This tree can be purchased from the Market at . This tree will reward a farmer with File:XP-icon.png experience experience points and 150 coins every 2 days. If purchased from the Market it will take 12 harvests before a profit is made.