They grow different crops.
With pigments extracted from plants and animals.
Well to answer this question all you have to do is ask yourself how does plants help people today, it is the same. Now how the Sioux and other tribes knew which plants to get would be by watching animals, animals knew which plants to eat and which plants not to eat. Animals even know which plants to eat in order to get better if they are sick.
They grow plants and vegetables during growing season.
The plural form of Sioux is Sioux.
Nomadic, hunter gatherer people. Eg the Dakota (Sioux) native americans.
Sioux City
We powwow with the Sioux tomorrow. Let's go visit the Sioux. That is a Sioux headdress.
Bison, deer, fish, grouse, eggs, wild cherries, wild turnips, wild turkey, a variety of wild plants. Because of their nomadic nature, they had little if any agriculture.
In 1862 the Dakota Sioux were known as the Dakota/Dakotah or the Sioux or the Dakota Sioux.
Sioux
If you mean Native American groups, there currently are the Turtle Mountain Chippewa, the Standing Rock Sioux, the Spirit Lake Sioux, the Hidatsa, the Mandan, and the Arikara. Other native groups could be animals, plants, soils, etc.
Sioux Lehner's birth name is Sioux Lewellyn.