Not to be confused with Flower Food, Fertilizer is an item in Animal Crossing: Pocket Camp Complete that can be used to instantly "grow" fruit on fruit trees. Fertilizer can be useful if you have animal requests that require fruit, but the fruit trees in Pocket Camp Complete still need an hour or more to grow. On the downside, Fertilizer is a much rarer item than your collectibles and crafting materials, so you should use it only when you really need it.