Algonquian-speaking people also practiced agriculture, particularly south of the Great Lakes, where the climate allows for a longer growing season. Notable indigenous crops historically farmed by Algonquins are the sunflower and tobacco. Around 800CE, Eastern Algonquians adopted maize agriculture from their neighbors in the interior. Even among groups who mainly hunted, agricultural products were an important source of food. They obtained what was needed by trading with or raiding societies that practiced more agriculture. Eastern Algonquians created pots that could withstand not only thermal stress but the mechanical stress of rough use.