A calquat tree seed can only be planted in a plant pot. After watering the calquat seedling it will grow into a sapling, which may then be planted in the Calquat patch in Tai Bwo Wannai. When fully grown, calquat fruits may be harvested.
Once grown, players can harvest a maximum of 6 calquat fruits at a time. If the player does not dig up the tree, more fruits will grow eventually. The calquat farming patch can be cleared by right clicking on a fully grown tree and selecting clear.
Calquat tree seeds can be found in a bird nest. They may be bought from the Vinesweeperminigame for 35000 points each.