Tao families grow the root in large quantities that vary depending upon their number of friends and relatives. When relatives or good friends launch a new boat, they make offerings of taro at the ceremonial feast. And when a new house is finished, friends and relatives stack taro on the roof and along the walls.
比如視親朋好友的多寡決定種植芋頭的數量，新船下水典禮須陳列禮芋於船上；新屋落成時，也須放置禮芋於屋頂及屋側。