Raw potatoes can be picked from fields throughout Lumbridge, such as those southwest of the windmill, near Draynor Manor or north of the cow field in Lumbridge. They heal 1 hitpoint when eaten raw. When picking potatoes from fields, players may randomly receive 1 potato seed.
Players with level 1 Farming can grow them from seeds. Three potato seeds are needed per allotment. They take 40 minutes to grow, grant 8 Farming experience for planting and 9 Farming experience for harvesting. Up to 10 raw potatoes can be stored in a sack making a sack of potatoes, which can be used to pay a gardener to look after an onion patch.
Raw potatoes are used in cooking. Placing one in a bowl of water is required to make stews. Raw potatoes can be cooked on a range to make baked potatoes. (Note: Cooking potatoes on a fire will always result in a burnt potato.)
Raw potatoes can be bought from Hudo at the Grand Tree, who has a stock of 10, for 1 coin each. Wydin's food store in Port Sarim also has a stock of one raw potato for 1 coin each. Kenelme's Wares in Piscarilius House sells one raw potato for 1 coin each.