Exotic Fruit Market grows Kumquat at our farm in California. Delicious, sweet yet tangy, kumquat fruit is a winter citrus fruit originated from China. Kumquats must be allowed to ripen fully on the tree before they picked. They can be enjoyed fresh, added in salads, or candied, and as a garnish. Kumquats taste best if they gently rolled or squeezed before being eaten. This process unifies sugary ingredients in its thin rind with that of underlying tart flesh. Eat kumquats as one would eat grapes or olives with the peel.