Grocer is the tier 4 Item in the Farming line of Capital City Objects. A Grocer is formed after 3 Grains are placed next to each other. If more than 3 Grains are placed next to each other, they'll form a Super Grocer, but aside from visual difference it does nothing special. You can get it as loot from Chest and Large Chest or using a Crane on an existing Grocer. If 3 Grocers are placed next to each other, they combine to form a Barn and if 4 or more Grocer are placed next to each other they'll form a Super Barn.